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FR1541265A - Cylindrical beacon with catadioptric property - Google Patents

Cylindrical beacon with catadioptric property

Info

Publication number
FR1541265A
FR1541265A FR124638A FR124638A FR1541265A FR 1541265 A FR1541265 A FR 1541265A FR 124638 A FR124638 A FR 124638A FR 124638 A FR124638 A FR 124638A FR 1541265 A FR1541265 A FR 1541265A
Authority
FR
France
Prior art keywords
catadioptric
property
beacon
cylindrical
cylindrical beacon
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR124638A
Other languages
French (fr)
Inventor
Henri Calippe
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to FR124638A priority Critical patent/FR1541265A/en
Application granted granted Critical
Publication of FR1541265A publication Critical patent/FR1541265A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
    • E01F9/619—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings with reflectors; with means for keeping reflectors clean

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
FR124638A 1967-10-17 1967-10-17 Cylindrical beacon with catadioptric property Expired FR1541265A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR124638A FR1541265A (en) 1967-10-17 1967-10-17 Cylindrical beacon with catadioptric property

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR124638A FR1541265A (en) 1967-10-17 1967-10-17 Cylindrical beacon with catadioptric property

Publications (1)

Publication Number Publication Date
FR1541265A true FR1541265A (en) 1968-10-04

Family

ID=8640163

Family Applications (1)

Application Number Title Priority Date Filing Date
FR124638A Expired FR1541265A (en) 1967-10-17 1967-10-17 Cylindrical beacon with catadioptric property

Country Status (1)

Country Link
FR (1) FR1541265A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114220A (en) * 1977-03-14 1978-09-19 Barry Lee Pfister Combination leveling and grade checking tool
US5301435A (en) * 1989-04-04 1994-04-12 Pyramid Optical, Inc. Prism assembly having multi-directional reflectivity and targeting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114220A (en) * 1977-03-14 1978-09-19 Barry Lee Pfister Combination leveling and grade checking tool
US5301435A (en) * 1989-04-04 1994-04-12 Pyramid Optical, Inc. Prism assembly having multi-directional reflectivity and targeting

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