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WO2001042733A1 - Combined measuring systems on a circular support base - Google Patents

Combined measuring systems on a circular support base Download PDF

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Publication number
WO2001042733A1
WO2001042733A1 PCT/FR2000/003373 FR0003373W WO0142733A1 WO 2001042733 A1 WO2001042733 A1 WO 2001042733A1 FR 0003373 W FR0003373 W FR 0003373W WO 0142733 A1 WO0142733 A1 WO 0142733A1
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WIPO (PCT)
Prior art keywords
graduated
semi
circular
percent
circle
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Ceased
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PCT/FR2000/003373
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French (fr)
Inventor
Raja Siblini
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L9/00—Circular curve-drawing or like instruments
    • B43L9/002—Circular curve-drawing or like instruments with perforated or marked discs

Definitions

  • the present invention relates to a device for combining two or more measurement systems on the basis of a circular support.
  • the device according to the invention eliminates these drawbacks. Its use allows by simple reading to measure or trace such sectors. According to a first characteristic, it comprises a circle regularly graduated from 0 to 100, the graduations 0 and 100 being combined and / or, a semicircle regularly graduated from 0 to 100, 0 and 100 being diametrically opposite.
  • FIG. 11 is constituted by a flat and transparent surface.
  • the accompanying drawings show by way of non-limiting examples nine variants of the device of the invention.
  • FIG 1 The device consists of a circular base 1 provided on its periphery with graduations in degrees from 0 to 360, 0 and 360 combined, clockwise, with a circular hole in its center 2, of a circle 3 of center 2 graduated in percent from 0 to 100, 0 and 100 combined, clockwise and, of a recess 4 which makes it possible to mark the location in%.
  • the axis 5 of the device passes from left to right by the graduations 270, 75, 25 and 90.
  • the axis 6 passes from bottom to top by the graduations 180, 50, 0 and 0.
  • This device is educational, because it allows to express, by simple reading, an angular sector simultaneously in degrees and in "percent" of a circular diagram. It therefore helps to visualize the concept of percentages.
  • FIGS 2, 3, 4 and 5, independently associated with FIG 1, represent four variants of the device. Measuring an angular sector in degrees not necessarily requiring a 360 ° protractor (one of 180 ° is sufficient), these same figures also illustrate, in themselves, four other variants of the device of the invention.
  • FIG 2: 1 is hollowed out of the semi-crowns 7 and 8 of center 2.
  • the semicircular edge 9 is graduated in "percent", from 0 to 100 clockwise and, the semi-circular edge circular 10 is graduated in degrees, from 0 to 180.
  • This variant of the device makes it possible to measure or draw an angular sector in degrees and in "percent" of a circular or semi-circular diagram. Measuring instruments device have the same center, 2
  • FIG 3 The circle 3 is hollowed out from the semi-crown 7
  • the semi-circle 9 is graduated in "percent” from 0 to 100
  • the semi-circular edge 1 1 is graduated in degrees from 0 to 180
  • the circle 3 is provided with two juxtaposed rectangles 12 and 13
  • the rectangle 13 is millimeter-shaped and, to make it possible to draw segments, the rectangle 12 is hollowed out
  • This variant of the device makes it possible to measure or draw an angular sector in degrees and in "percent" of a circular or semi-circular diagram It also makes it possible to measure or draw a segment
  • the instruments for measuring an angular sector of the device have the same center, 2 FIG 4
  • the circle 3 is hollowed out from the semi-crowns 14 of centers 15 and 16
  • the semicircular edge 17 is graduated in "percent” from 0 to 100 clockwise shows and, the semi-circular edge 18 is graduated in degrees from 0 to 180
  • the circle 3 is also hollowed out by the rectangles 19
  • the rule 20 is millimeter
  • This variant of the device makes it possible to measure or draw an angular sector in degrees and in "for cent "of a circular or semi-circular diagram, as it allows to measure or draw a segment and to draw straight lines parallel or even perpendicular
  • the instruments for measuring an angular sector have centers 1, 15 and 16 These centers are di referents FIG 5
  • the circle 3 is hollowed
  • Figure 1 Figure 1 combining Figures 2 or 3 or 4 or 5
  • Figures 2, 3, 4 and 5 illustrate nine variants of the device according to the invention
  • the invention is not limited to the embodiments which have just been described and represented. It is possible to make numerous modifications of detail there without departing from the scope of the invention.
  • the device according to the invention is educational. It is particularly intended for the use of pupils and teachers.

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  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

The invention relates to a device which enables two or more measuring systems to be combined on a circular support base. The invention further relates to a device for measuring or marking an angular sector in degrees, in "percent" of a circular diagram, in "percent" of a semi-circular diagram and for measuring or marking a segment. The device consists of a circular base (1) which has a circular hole in the center (2) and which is graduated in degrees on the periphery, from 0 to 360; a center (2) circle (3), which is graduated in "percent", from 0 to 100, and a recess (4). The semi-discs (21) of the centers (22) and (23) are removed from the circle (3), the semi-circular edge (24) is graduated in "percent", the semi-circular edge (25) is graduated in degrees and the rectilinear edges of the semi-discs (21) are in millimeters. The device according to the invention is particularly useful for pupils and teachers.

Description

SYSTEMES COMBINES DE MESURES SUR LA BASE DE SUPPORT CIRCULAIRE COMBINED MEASUREMENT SYSTEMS BASED ON CIRCULAR SUPPORT

La présente invention concerne un dispositif permettant de combiner deux ou plusieurs systèmes de mesures sur la base de support circulaire.The present invention relates to a device for combining two or more measurement systems on the basis of a circular support.

Les statistiques tiennent une place importante dans les domaines scientifiques ou ceux de la vie courante. Afin d'être simplifiées ou visualisées, les informations sont généralement données en pour cent (%) ou représentées graphiquement par des diagrammes circulaires (camembert) ou semi-circulaires. Depuis quelques années, les statistiques font partie des programmes scolaires et, cela, à partir de la classe de sixième. Jusqu'à ce jour, mesurer ou tracer à la main un secteur angulaire d'un diagramme circulaire ou semi-circulaire en pourcentages nécessitait le passage par un calcul d'angles en degrés, ou en grades, et l'usage d'un rapporteur.Statistics occupy an important place in the fields of science or those of everyday life. In order to be simplified or visualized, the information is generally given in percent (%) or represented graphically by circular (pie chart) or semi-circular diagrams. For a few years now, statistics have been part of the school curricula, starting from the sixth grade. Until now, measuring or drawing by hand an angular sector of a circular or semi-circular diagram in percentages required passing through a calculation of angles in degrees, or in grades, and the use of a protractor .

Le dispositif selon l'invention supprime ces inconvénients. Son utilisation permet par simple lecture de mesurer ou de tracer de tels secteurs. Il comporte en effet selon une première caractéristique un cercle régulièrement gradué de 0 à 100, les graduations 0 et 100 étant confondues et/ou, un demi-cercle régulièrement gradué de 0 à 100, 0 et 100 étant diamétralement opposés. Pour mesurer ou tracer un secteur d'un diagramme circulaire (ou semi-circulaire) en "pour cent", il suffit d'utiliser le dispositif à la manière d'un rapporteur en plaçant le sommet du secteur au centre du cercle (ou du demi-cercle), de faire coïncider un côté du secteur avec la graduation 0 du cercle (ou du demi-cercle), et de lire ou de repérer directement sur le cercle (ou le demi-cercle), la graduation en "pour cent" coïncidant avec le second côté. Il est également un outil pédagogique, car il aide l'élève à comprendre d'une manière concrète le concept des pourcentages.The device according to the invention eliminates these drawbacks. Its use allows by simple reading to measure or trace such sectors. According to a first characteristic, it comprises a circle regularly graduated from 0 to 100, the graduations 0 and 100 being combined and / or, a semicircle regularly graduated from 0 to 100, 0 and 100 being diametrically opposite. To measure or draw a sector of a circular (or semi-circular) diagram in "percent", just use the device in the manner of a protractor by placing the top of the sector in the center of the circle (or the semicircle), to make one side of the sector coincide with the 0 graduation of the circle (or semicircle), and to read or locate directly on the circle (or the semicircle), the graduation in "percent "coinciding with the second side. It is also an educational tool, because it helps the student to understand in a concrete way the concept of percentages.

11 est constitué par une surface plane et transparente. Les dessins annexés représentent à titres d'exemples non limitatifs neuf variantes du dispositif de l'invention.11 is constituted by a flat and transparent surface. The accompanying drawings show by way of non-limiting examples nine variants of the device of the invention.

FIG 1 : Le dispositif est constitué d'une base circulaire 1 munie sur sa périphérie de graduations en degrés allant de 0 à 360, 0 et 360 confondues, dans le sens des aiguilles d'une montre, d'un trou circulaire en son centre 2, d'un cercle 3 de centre 2 gradué en pour cent de 0 à 100, 0 et 100 confondues, dans le sens des aiguilles d'une montre et, d'un évidement 4 qui permet de marquer le repérage en %. L'axe 5 du dispositif passe de gauche à droite par les graduations 270, 75, 25 et 90. L'axe 6 passe de bas en haut par les graduations 180, 50, 0 et 0. Ce dispositif est pédagogique, car il permet d'exprimer, par simple lecture, un secteur angulaire simultanément en degrés et en "pour cent" d'un diagramme circulaire. Il aide donc à visualiser le concept des pourcentages.FIG 1: The device consists of a circular base 1 provided on its periphery with graduations in degrees from 0 to 360, 0 and 360 combined, clockwise, with a circular hole in its center 2, of a circle 3 of center 2 graduated in percent from 0 to 100, 0 and 100 combined, clockwise and, of a recess 4 which makes it possible to mark the location in%. The axis 5 of the device passes from left to right by the graduations 270, 75, 25 and 90. The axis 6 passes from bottom to top by the graduations 180, 50, 0 and 0. This device is educational, because it allows to express, by simple reading, an angular sector simultaneously in degrees and in "percent" of a circular diagram. It therefore helps to visualize the concept of percentages.

Les FIG 2, 3, 4 et 5, associées indépendamment à la FIG 1, représentent quatre variantes du dispositif. Mesurer un secteur angulaire en degrés ne nécessitant pas obligatoirement un rapporteur de 360° (un de 180° suffit), ces mêmes figures illustrent également, en elles-mêmes, quatre autres variantes du dispositif de l'invention. FIG 2 : 1 est évidée des demi- couronnes 7 et 8 de centre 2. Le bord semi- circulaire 9 est gradué en "pour cent", de 0 à 100 dans le sens des aiguilles d'une montre et, le bord semi-circulaire 10 est gradué en degrés, de 0 à 180. Cette variante du dispositif permet de mesurer ou de tracer un secteur angulaire en degrés et en "pour cent" d'un diagramme circulaire ou semi-circulaire. Les instruments de mesure du dispositif ont le même centre, 2FIGS 2, 3, 4 and 5, independently associated with FIG 1, represent four variants of the device. Measuring an angular sector in degrees not necessarily requiring a 360 ° protractor (one of 180 ° is sufficient), these same figures also illustrate, in themselves, four other variants of the device of the invention. FIG 2: 1 is hollowed out of the semi-crowns 7 and 8 of center 2. The semicircular edge 9 is graduated in "percent", from 0 to 100 clockwise and, the semi-circular edge circular 10 is graduated in degrees, from 0 to 180. This variant of the device makes it possible to measure or draw an angular sector in degrees and in "percent" of a circular or semi-circular diagram. Measuring instruments device have the same center, 2

FIG 3 Le cercle 3 est évidé de la demi- couronne 7 Le demi-cercle 9 est gradué en "pour cent" de 0 à 100 Le bord semi-circulaire 1 1 est gradué en degrés de 0 à 180 Le cercle 3 est muni de deux rectangles juxtaposés 12 et 13 Le rectangle 13 est millimétré et, pour permettre de tracer des segments, le rectangle 12 est évidéFIG 3 The circle 3 is hollowed out from the semi-crown 7 The semi-circle 9 is graduated in "percent" from 0 to 100 The semi-circular edge 1 1 is graduated in degrees from 0 to 180 The circle 3 is provided with two juxtaposed rectangles 12 and 13 The rectangle 13 is millimeter-shaped and, to make it possible to draw segments, the rectangle 12 is hollowed out

Cette variante du dispositif permet de mesurer ou de tracer un secteur angulaire en degrés et en en "pour cent" d'un diagramme circulaire ou semi-circulaire Elle permet également de mesurer ou de tracer un segment Les instruments de mesure d'un secteur angulaire du dispositif ont le même centre, 2 FIG 4 Le cercle 3 est évidé des demi- couronnes 14 de centres 15 et 16 Le bord semi-circulaire 17 est gradué en "pour cent" de 0 à 100 dans le sens des aiguilles d'une montre et, le bord semi-circulaire 18 est gradué en degrés de 0 à 180 Le cercle 3 est également évidé des rectangles 19 La règle 20 est millimétrée Cette vaπante du dispositif permet de mesurer ou de tracer un secteur angulaire en degrés et en "pour cent" d'un diagramme circulaire ou semi-circulaire, comme elle permet de mesurer ou de tracer un segment et de tracer des droites parallèles ou même perpendiculaires Les instruments de mesure d'un secteur angulaire ont pour centres 1, 15 et 16 Ces centres sont différents FIG 5 Le cercle 3 est évidé des demi- disques 21 de centres 22 et 23 Le bord semi-circulaire de centre 22 est gradué en "pour cent" de 0 à 100 dans le sens des aiguilles d'une montre Le bord semi-circulaire 25 de centre 23 est gradué en degrés de 0 à 180 Les diamètres des deux demi- disques 21 sont millimétrés Cette variante du dispositif permet de mesurer ou de tracer un secteur angulaire en degrés et en "pour cent" d'un diagramme circulaire ou semi-circulaire, comme elle permet de mesurer ou de tracer un segment et de tracer des droites parallèles ou même perpendiculaires. Les instruments de mesure d'un secteur angulaire ont pour centres 2, 22 et 23 Ces centres sont différentsThis variant of the device makes it possible to measure or draw an angular sector in degrees and in "percent" of a circular or semi-circular diagram It also makes it possible to measure or draw a segment The instruments for measuring an angular sector of the device have the same center, 2 FIG 4 The circle 3 is hollowed out from the semi-crowns 14 of centers 15 and 16 The semicircular edge 17 is graduated in "percent" from 0 to 100 clockwise shows and, the semi-circular edge 18 is graduated in degrees from 0 to 180 The circle 3 is also hollowed out by the rectangles 19 The rule 20 is millimeter This variant of the device makes it possible to measure or draw an angular sector in degrees and in "for cent "of a circular or semi-circular diagram, as it allows to measure or draw a segment and to draw straight lines parallel or even perpendicular The instruments for measuring an angular sector have centers 1, 15 and 16 These centers are di referents FIG 5 The circle 3 is hollowed out of the half-discs 21 with centers 22 and 23 The semi-circular edge with center 22 is graduated in "percent" from 0 to 100 clockwise The semi-circular edge circular 25 with center 23 is graduated in degrees from 0 to 180 The diameters of the two half-discs 21 are millimeter This variant of the device makes it possible to measure or draw an angular sector in degrees and in "percent" of a circular diagram or semi-circular, as it makes it possible to measure or draw a segment and to draw straight lines parallel or even perpendicular. The instruments for measuring an angular sector have centers 2, 22 and 23 These centers are different

Ainsi, à titres d'exemples, la figure 1, la figure 1 combinant les figures 2 ou 3 ou 4 ou 5, les figures 2, 3, 4 et 5 illustrent neuf variantes du dispositif selon l'invention Bien entendu, l'invention n'est pas limitée aux modes de réalisation qui viennent d'être décrits et représentés On pourra y apporter de nombreuses modifications de détail sans sortir pour cela du cadre de l'inventionThus, by way of examples, Figure 1, Figure 1 combining Figures 2 or 3 or 4 or 5, Figures 2, 3, 4 and 5 illustrate nine variants of the device according to the invention Of course, the invention is not limited to the embodiments which have just been described and represented. It is possible to make numerous modifications of detail there without departing from the scope of the invention.

Le dispositif selon l'invention est pédagogique II est particulièrement destiné à l'usage des élèves et des enseignants. The device according to the invention is educational. It is particularly intended for the use of pupils and teachers.

Claims

REVENDICATIONS 1 ) Dispositif permettant de combiner deux ou plusieurs systèmes de mesures sur la base de support circulaire caractérisé en ce qu'il comporte une base circulaire ( 1 ) présentant un trou circulaire en son centre (2) et graduée sur sa périphérie en degrés de 0 à 360, un cercle (3) de centre (2) gradué en "pour cent" de 0 à 100 et un évidement (4) permettant le marquage du repérage en pourcentages.1) Device for combining two or more measurement systems on the circular support base characterized in that it comprises a circular base (1) having a circular hole in its center (2) and graduated on its periphery in degrees of 0 at 360, a circle (3) with a center (2) graduated in "percent" from 0 to 100 and a recess (4) allowing the marking of the location in percentages. 2) Dispositif permettant de combiner deux ou plusieurs systèmes de mesures sur la base de support circulaire selon la revendication 1, caractérisé en ce que le cercle (3) est évidé des demi- couronnes (7 , 8) de centre (2), le demi-cercle (9) est gradué en "pour cent" de 0 à 100, et le demi-cercle (10) est gradué en degrés de 0 à 180.2) Device for combining two or more measurement systems on the basis of a circular support according to claim 1, characterized in that the circle (3) is hollowed out from the half-crowns (7, 8) of center (2), the semicircle (9) is graduated in "percent" from 0 to 100, and the semicircle (10) is graduated in degrees from 0 to 180. 3) Dispositif permettant de combiner deux ou plusieurs systèmes de mesures sur la base de support circulaire selon la revendication 1, caractérisé en ce que le cercle (3) est évidé de la demi- couronne (7) de centre (2), le demi-cercle (9) est gradué en "pour cent" de 0 à 100, le bord semi-circulaire (11) est gradué en degrés de 0 à 180, le rectangle (12) est évidé et le rectangle (13) est millimétré.3) Device for combining two or more measurement systems on the basis of circular support according to claim 1, characterized in that the circle (3) is hollowed out of the half-crown (7) of center (2), the half -circle (9) is graduated in "percent" from 0 to 100, the semi-circular edge (11) is graduated in degrees from 0 to 180, the rectangle (12) is hollowed out and the rectangle (13) is millimeter. 4) Dispositif permettant de combiner deux ou plusieurs systèmes de mesures sur la base de support circulaire selon la revendication 1, caractérisé en ce que le cercle (3) est évidé des demi- couronnes (14) de centres (15) et (16) et des rectangles (19), le demi-cercle (17) est gradué en "pour cent" de 0 à 100, le demi-cercle (18) est gradué en degrés de 0 à 180, et la règle (20) est millimétrée.4) Device for combining two or more measurement systems on the basis of a circular support according to claim 1, characterized in that the circle (3) is hollowed out from the half-rings (14) of centers (15) and (16) and rectangles (19), the semicircle (17) is graduated in "percent" from 0 to 100, the semicircle (18) is graduated in degrees from 0 to 180, and the ruler (20) is millimeter . 5) Dispositif permettant de combiner deux ou plusieurs systèmes de mesures sur la base de support circulaire selon la revendication 1, caractérisé en ce que le cercle (3) est évidé des demi- disques (21) de centres (22) et (23), le bord semi- circulaire (24) est gradué en "pour cent", le bord semi-circulaire (25) est gradué en degrés, et les bords rectilignes des demi- disques (21) sont millimétrés.5) Device for combining two or more measurement systems on the basis of circular support according to claim 1, characterized in that the circle (3) is hollowed out of the half-discs (21) of centers (22) and (23) , the semi-circular edge (24) is graduated in "percent", the semi-circular edge (25) is graduated in degrees, and the straight edges of the semi-discs (21) are millimeter. 6) Dispositif permettant de combiner deux ou plusieurs systèmes de mesures caractérisé par un cercle (3) présentant un trou circulaire en son centre (2) et gradué sur sa périphérie en "pour cent" de 0 à 100.6) Device making it possible to combine two or more measurement systems characterized by a circle (3) having a circular hole in its center (2) and graduated on its periphery in "percent" from 0 to 100. 7) Dispositif permettant de combiner deux ou plusieurs systèmes de mesures selon la revendication 6, caractérisé en ce que le cercle (3) est évidé des demi- couronnes (7 , 8) de centre (2), le demi-cercle (9) est gradué en "pour cent" de 0 à 100, et le demi-cercle (10) est gradué en degrés de 0 à 180.7) Device for combining two or more measurement systems according to claim 6, characterized in that the circle (3) is hollowed out from the semi-crowns (7, 8) of center (2), the semicircle (9) is graduated in "percent" from 0 to 100, and the semicircle (10) is graduated in degrees from 0 to 180. 8) Dispositif permettant de combiner deux ou plusieurs systèmes de mesures selon la revendication 6, caractérisé en ce que le cercle (3) est évidé de la demi- couronne (7) de centre (2), le demi-cercle (9) est gradué en "pour cent" de 0 à 100, le bord semi-circulaire (11) est gradué en degrés de 0 à 180, le rectangle (12) est évidé et le rectangle (13) est millimétré. 9) Dispositif permettant de combiner deux ou plusieurs systèmes de mesures selon la revendication 6, caractérisé en ce que le cercle (3) est évidé des demi- couronnes (14) de centres (15) et (16) et des rectangles (19), le demi-cercle (17) est gradué en "pour cent" de 0 à 100, le demi-cercle (18) est gradué en degrés de 0 à 180, et la règle (20) est millimétrée.8) Device for combining two or more measurement systems according to claim 6, characterized in that the circle (3) is hollowed out from the semi-crown (7) of center (2), the semicircle (9) is graduated in "percent" from 0 to 100, the semi-circular edge (11) is graduated in degrees from 0 to 180, the rectangle (12) is hollowed out and the rectangle (13) is millimeter. 9) Device for combining two or more measurement systems according to claim 6, characterized in that the circle (3) is hollowed out from the semi-crowns (14) of centers (15) and (16) and rectangles (19) , the semicircle (17) is graduated in "percent" from 0 to 100, the semicircle (18) is graduated in degrees from 0 to 180, and the ruler (20) is millimeter. 10) Dispositif permettant de combiner deux ou plusieurs systèmes de mesures selon la revendication 6, caractérisé en ce que le cercle (3) est évidé des demi- disques (21) de centres (22) et (23), le bord semi-circulaire (24) est gradué en "pour cent" de 0 à 100, le bord semi-circulaire (25) est gradué en degrés de 0 à 180, et les bords rectilignes des demi- disques (21) sont millimétrés. 10) Device for combining two or more measurement systems according to claim 6, characterized in that the circle (3) is hollowed out of the semi-discs (21) of centers (22) and (23), the semi-circular edge (24) is graduated in "percent" from 0 to 100, the semi-circular edge (25) is graduated in degrees from 0 to 180, and the straight edges of the half-discs (21) are millimeter.
PCT/FR2000/003373 1999-12-07 2000-12-04 Combined measuring systems on a circular support base Ceased WO2001042733A1 (en)

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Application Number Priority Date Filing Date Title
FR9915383A FR2801964B1 (en) 1999-12-07 1999-12-07 DEVICE FOR COMBINING TWO OR MORE MEASUREMENT SYSTEMS ON THE BASE OF A CIRCULAR SUPPORT
FR99/15383 1999-12-07

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FR2934812A1 (en) * 2008-08-07 2010-02-12 Vincent Bourdaud Drawing instrument i.e. imaging jig, for e.g. artwork, has body formed of primary template and six small templates, where templates are fabricated in rigid, plain and transparent material that is sufficient for resisting shocks
CH701247A1 (en) * 2009-06-11 2010-12-15 Joerg-Ulrich Zowalla Template and template set for use in the repair of composite materials.

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US3609299A (en) * 1970-03-30 1971-09-28 Jerauld G Wright Navigational computer
GB1423461A (en) * 1973-02-28 1976-02-04 Snap On Tools Corp Graduation of dials of measuring instruments
US4604812A (en) * 1985-03-01 1986-08-12 Jahanbakhsh Arjomand Pitch-angle-checker (P-A-C)
US4736526A (en) * 1987-04-17 1988-04-12 Eric Hsia Geometry template
US4974329A (en) * 1988-03-25 1990-12-04 Siegfried Willa Goniometer
FR2711908A1 (en) * 1993-11-05 1995-05-12 Makowski Serge Device for measuring the percentage of stenosis in stenosed arteries
US5588218A (en) * 1995-05-24 1996-12-31 Barry; David Teaching protractor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3609299A (en) * 1970-03-30 1971-09-28 Jerauld G Wright Navigational computer
GB1423461A (en) * 1973-02-28 1976-02-04 Snap On Tools Corp Graduation of dials of measuring instruments
US4604812A (en) * 1985-03-01 1986-08-12 Jahanbakhsh Arjomand Pitch-angle-checker (P-A-C)
US4736526A (en) * 1987-04-17 1988-04-12 Eric Hsia Geometry template
US4974329A (en) * 1988-03-25 1990-12-04 Siegfried Willa Goniometer
FR2711908A1 (en) * 1993-11-05 1995-05-12 Makowski Serge Device for measuring the percentage of stenosis in stenosed arteries
US5588218A (en) * 1995-05-24 1996-12-31 Barry; David Teaching protractor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2934812A1 (en) * 2008-08-07 2010-02-12 Vincent Bourdaud Drawing instrument i.e. imaging jig, for e.g. artwork, has body formed of primary template and six small templates, where templates are fabricated in rigid, plain and transparent material that is sufficient for resisting shocks
CH701247A1 (en) * 2009-06-11 2010-12-15 Joerg-Ulrich Zowalla Template and template set for use in the repair of composite materials.

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FR2801964A1 (en) 2001-06-08
FR2801964B1 (en) 2002-06-21

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