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EP0377569B1 - Recipient d'emballage a agencement dechirable - Google Patents

Recipient d'emballage a agencement dechirable Download PDF

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Publication number
EP0377569B1
EP0377569B1 EP19880905689 EP88905689A EP0377569B1 EP 0377569 B1 EP0377569 B1 EP 0377569B1 EP 19880905689 EP19880905689 EP 19880905689 EP 88905689 A EP88905689 A EP 88905689A EP 0377569 B1 EP0377569 B1 EP 0377569B1
Authority
EP
European Patent Office
Prior art keywords
strip
tear
adhesive
packing container
wall
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 - Lifetime
Application number
EP19880905689
Other languages
German (de)
English (en)
Other versions
EP0377569A1 (fr
Inventor
Norbert Buchner
Klaus Domke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0377569A1 publication Critical patent/EP0377569A1/fr
Application granted granted Critical
Publication of EP0377569B1 publication Critical patent/EP0377569B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/22—Details
    • B65D77/225—Pressure relief-valves incorporated in a container wall, e.g. valves comprising at least one elastic element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • B65D17/4011—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening completely by means of a tearing tab
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/001—Action for opening container
    • B65D2517/0013—Action for opening container pull-out tear panel, e.g. by means of a tear-tab
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0058—Other details of container end panel
    • B65D2517/0059—General cross-sectional shape of container end panel
    • B65D2517/0061—U-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0058—Other details of container end panel
    • B65D2517/008—Materials of container end panel
    • B65D2517/0085—Foil-like, e.g. paper or cardboard
    • B65D2517/0086—Foil-like, e.g. paper or cardboard laminated

Definitions

  • the invention is based on a packaging container according to the preamble of claim 1.
  • a packaging container according to the preamble of claim 1.
  • EP-A-104 548 and EP-A-129 102 preferably in the mirror of Cover a weakening line in the form of a notch that surrounds a tear piece.
  • a grip tab the free end of which can be easily gripped with the fingers to remove the tear-open part, is connected to the start section of the tear-open part, which tapers as a tongue.
  • a packaging container with a pressure relief valve has become known from EP-A-209 729, through which gas generated by the full goods during storage, for example in the case of coffee, carbon dioxide can escape, so that inflation of the packaging container is avoided.
  • the object of the invention is to provide an easy-to-open packaging container with a pressure relief valve, which is constructed in a material-saving manner.
  • the packaging container according to the invention with the characterizing features of claim 1 has the advantage that the grip tab and the pressure relief valve are integrated in one part.
  • this training has the further advantage that the production of the weakening line for the tear-open part and the opening for the pressure relief valve in a single operation and the attachment of the combined grip tab pressure relief valve part to the packaging container can also be carried out in a single operation, so that also the work involved in manufacturing the container is very low.
  • FIG. 1 shows the head of a packaging container with a tear-open device in a diagrammatic view.
  • 2 shows a part of the packaging container according to FIG. 1 in cross section in the plane II-II of FIG. 1
  • FIGS. 3 and 4 show two other exemplary embodiments of a tear-open device of a packaging container in plan view.
  • 5 shows the tear-open device according to FIG. 4 in cross section in the plane VV of FIG. 4
  • FIG. 6 shows a further exemplary embodiment of a tear open device in cross section.
  • a packaging container has a tubular or sleeve-shaped body 1 and its upper opening is closed with a lid 2, which is sealed to the upper end of the body 1 with a U-shaped edge felt 3.
  • the packaging container is water vapor and gas tight and particularly suitable for holding food and beverages that are sensitive to air and moisture.
  • the fuselage 1 is formed from a multilayer packaging material which has a weldable, thermoplastic layer on the inside.
  • the fuselage 1 has a square cross section with rounded corners; however, its cross-sectional shape can also be circular, oval, rectangular or polygonal, the corners preferably being rounded.
  • the cover 2 closing the upper opening of the fuselage 1 has a flat wall 4 and a U-shaped folded edge 3 which delimits this, the cross-sectional shape of the fuselage 1 and which surrounds the end of the fuselage and is sealed with the inside and outside thereof.
  • the cover 2 is made of a multi-layer composite material which has an outer layer 6 made of plastic or cardboard, a middle layer 7 made of thin metal foil and an inner layer 8 made of a weldable or heat-sealable plastic.
  • the packaging container has in a wall, preferably in the lid 2, a tear-open part 10 which is surrounded by a line of weakness 11 formed as a notch in the outer carrier layer.
  • the line of weakness 11 runs parallel in the flat wall 4 of the cover 2 near the edge flange 3, so that the tear-open part 10 results in a full tear-open area adapted to the cover mirror.
  • a second weakening line 12 bends from the weakening line 11 to the center of the cover 2, which, together with an arc-shaped weakening line 13 running approximately parallel thereto, delimit a tear-open tongue 14 extending towards the center of the cover 2 with a starting section 15.
  • the lines of weakness 12, 13 designed as notches or grooves are interrupted and their extension is continued by two parallel cuts 16 and a U-shaped cut 17, which delimits the starting section 15.
  • the cuts 16 and the U-shaped cut 17 penetrate the lid material completely so that the U-shaped start section 15 can be bent out of the lid surface and through the cuts 17 a gas exchange between the inside and outside of the container is possible.
  • the area of the start section 15, the cuts 16 and the ends of the weakening lines 12 and 13 are in platelets or strips 20 on the top of the cover 2 attached.
  • the strip 20 which has a rectangular shape, consists of a flexible film, preferably made of plastic, such as polyethylene or polypropylene, and has a thickness of approximately 30 ⁇ m.
  • the width of the strip 20 is slightly larger than the distance between the two cuts 16 from one another and the leg of the U-scintel 17. Its length is considerably larger than the distance between the ends of the lines of weakness 12, 13 and the U-cut 17. With the top the cover 2, the strip 20 is connected by means of two adhesive surfaces 21 and 22.
  • the two adhesive surfaces 21 and 22, which extend transversely to the longitudinal extent of the strip 20, are at a distance from one another, so that the intermediate, adhesive-free part 23 of the strip 20 together with the region of the surface of the cover 2 covered by this part delimits a valve channel 24 into which the cuts 16 open.
  • the end region opposite the end region with the adhesive surface 21 25 of the strip 20 is also adhesive-free, so that this end region 25 can be grasped as a handle.
  • the adhesive surfaces 21 and 22, which extend transversely to the longitudinal extent of the strip 20, consist of a non-hardening adhesive, preferably based on polyurethane.
  • the cover 2 with the lines of weakness 12, 13 and cuts 16, 17 and with the strip 20 acts as follows:
  • the flexible strip 20 is fastened lying flat on the top of the flat wall 4 of the lid 2. He covers the through the wall 4 cuts 16 and 17, so that a connection between the interior of the container and the atmosphere surrounding it is interrupted.
  • the sealing effect in the area of the valve channel 24 is further increased if a liquid sealant, for example silicone oil, is arranged in this.
  • a liquid sealant for example silicone oil
  • the pressure inside the packaging container increases, which pressure is also transmitted through the cuts 16 into the valve channel 24.
  • the adhesive-free part 23 of the flexible strip 20 which delimits the valve channel 24 at the top, bulges upward, so that a connection to the outside is finally created by widening the channel 24.
  • the strip 20 also facilitates the opening of the packaging container.
  • the adhesive-free end region 25 of the strip 20 is gripped with fingers and pulled up.
  • the adhesive surface 22 adjoining the adhesive-free end region 25 stands out from the surface of the cover 2, but the punched-out, U-shaped starting section 15 remains stuck to the strip 20 because of less resistance and is pulled up with it.
  • the cover material breaks between the legs of the U-shaped cut 17 and the cuts 16 and between these and the ends of the weakening lines 12 and 13, so that the crack continues in the weakening lines 12 and 13 and on the weakening line surrounding the tear-open part 10 engages so that the tear-open part 10 can finally be torn out of the cover 2.
  • the adhesive is of a non-hardening type and its adhesive properties are set in such a way that when the strip 20 is pulled at an angle, it detaches from the plastic top of the cover 2, but that not clamped, punched-out starting section 15 is taken away when pulling off.
  • the strip 20 serving as a pressure relief valve and a grip tab has essentially the same structure as in the exemplary embodiment according to FIG. 1, but the breakthrough for the gas to pass through the cover 2 and the weakening lines 12, 13 designed differently.
  • the lines of weakness 12 and 13 delimiting the tear-open tongue 14 end in front of the strip 20.
  • the U-shaped cut 17 with the start section 15 is covered and sealed by one end of the strip 20 with the adhesive surface 21.
  • the gas passage opening into the valve channel 24 is formed by an arcuate slot 27 which is covered by the adhesive-free part 23 of the strip 20.
  • Figure 4 is similar to that of Figure 3, with the difference that the weakening lines 11, 12, 13 are not designed as continuous notches or grooves, but that they are composed of many notch sections 29, which angled cuts 30 as Have catch notches.
  • the packaging container according to FIGS. 3 and 4 is opened in a manner similar to that described above under FIG. 1.
  • the adhesive surface 22 is first detached and when the adhesive surface 21 is detached, the starting section 15 is then pulled along and the tear is transferred into the weakening lines 12, 13.
  • the execution of the weakening lines 11, 12, 13 from several notch sections is particularly advantageous in the case of lids whose carrier layer consists of cardboard.
  • the strip 20 forming a pressure relief valve and a grip tab is formed from a single-layer film with an adhesive layer applied in zones for the adhesive surfaces 21 and 22, the strip 20 'in the exemplary embodiment according to FIG 5 from a film completely coated on the underside with adhesive 32.
  • the adhesive-free zones for the handle end region 25 'and the adhesive-free part 23' for the valve channel 24 are by gluing formed by thin cover strips 33 and 34.
  • cover strips 33, 34 consist of a flexible plastic film, for example polyethylene, polyester and the like, with a thickness of approximately 10 ⁇ m.
  • the strip 20 ⁇ forming a pressure relief valve and a grip tab can also be designed such that the valve function is laid in the multi-layer strip 20 Stlutter (FIG. 6).
  • the strip 20 "consists of two congruent strips 36, 37 made of a flexible plastic film, of which the upper surface is completely coated on the underside with an adhesive and is connected to the upper side of the lower strip 37 except in the region of the valve channel 24 'to be formed, in the area of which the adhesive layer is inactivated by a transverse cover strip 38.
  • the lower strip 37 Centered on the cover strip 38, the lower strip 37 has an opening 39 which, when the strip 20 ⁇ is attached to the cover 2, is in alignment with the opening 27 of the wall 4 of the cover 2 Forming the glue-free grip area 25 ⁇ , the glue-free area 25 ′′ of the strip 37, which is also completely coated on the underside, is provided with a cover strip 33 ⁇ .
  • the strips 20 ′ and 20 und forming a pressure relief valve and a grip tab are arranged on the lid 2 of the container in the same way as in the exemplary embodiments according to FIGS. 1 to 4.
  • a combined pressure relief valve handle part can easily be designed differently based on the exemplary embodiments described above, without departing from the spirit of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Cartons (AREA)

Abstract

Un récipient d'emballage comprend dans une paroi (2) une partie déchirable (10) qui facilite son ouverture, une languette d'accrochage étant fixée à la section initiale (15) de la partie déchirable. Afin de laisser s'échapper des gaz générés par le produit emballé, la partie (20, 20', 20'') qui forme la languette d'accrochage (25) a en outre la forme d'une soupape de surpression. De préférence, la languette d'accrochage-soupape de surpression se compose d'une bande en matière plastique collée à la section initiale (15) de la partie déchirable (10) et forme un évent (24) à travers un passage (16, 27) ménagé dans la paroi du récipient (4).

Claims (7)

1. Récipient d'emballage facile à ouvrir, comportant une partie arrachable (14) définie par des lignes d'affaiblissement (12, 13) séparables de la paroi (4) du récipient, partie arrachable dont l'amorce (15) est reliée à une patte de préhension, récipient caractérisé en ce que la partie (20, 20′, 20˝) qui forme la patte de préhension est également réalisée sous forme de soupape de sécurité qui ferme un passage (16, 27) de la paroi (4) du récipient d'emballage.
2. Récipient d'emballage selon la revendication 1, caractérisé en ce que la partie qui forme la patte de préhension et la soupape de sécurité est constituée d'une bande souple (20, 20′, 22˝) qui comporte sur le côté tourné vers la paroi du récipient (4), deux surfaces d'encollage (21, 22) s'étendant transversalement à la direction longitudinale et par lesquelles il est relié à la face extérieure de la paroi du récipient, l'une des surfaces encollées reliant le segment de démarrage (15) à la bande et entre les deux surfaces encollées entre la bande et la paroi du récipient s'étend un canal vertical (24) dans lequel un passage (16, 27) débouche dans la paroi (4) du récipient.
3. Récipient d'emballage selon la revendication 2, caractérisé en ce que la face inférieure de la bande (20′) est complètement revêtue de colle et en ce que la couche de colle est inactivée au niveau de la poignée (25) et du segment (23) recouvrant le canal de soupape (24) par chaque fois une bande de recouvrement (33, 34).
4. Récipient d'emballage selon l'une des revendications 1 à 3, caractérisé en ce que l'amorce (15) de la partie arrachable (10) est reliée par la surface encollée (22) entre l'extrémité de préhension (25) et le canal de soupape (24) de la bande (20),
5. Récipient d'emballage selon l'une des revendications 1 à 3, caractérisé en ce que l'amorce (15) est reliée à l'extrémité de la bande (20) en regard de l'extrémité de poignée (15) non collante.
6. Récipient d'emballage selon la revendication 4 ou 5, caractérisé par des lignes de rupture adjacentes à l'amorce (15).
7. Récipient d'emballage selon l'une des revendications 1 à 6, caractérisé en ce que le passage qui débouche dans le canal (24) est une partie de la ligne d'atténuation ou du segment libre de l'amorce (15).
EP19880905689 1987-08-06 1988-07-07 Recipient d'emballage a agencement dechirable Expired - Lifetime EP0377569B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873726162 DE3726162A1 (de) 1987-08-06 1987-08-06 Verpackungsbehaelter mit aufreisseinrichtung
DE3726162 1987-08-06

Publications (2)

Publication Number Publication Date
EP0377569A1 EP0377569A1 (fr) 1990-07-18
EP0377569B1 true EP0377569B1 (fr) 1991-06-19

Family

ID=6333214

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880905689 Expired - Lifetime EP0377569B1 (fr) 1987-08-06 1988-07-07 Recipient d'emballage a agencement dechirable

Country Status (5)

Country Link
US (1) US4971218A (fr)
EP (1) EP0377569B1 (fr)
JP (1) JPH02504500A (fr)
DE (2) DE3726162A1 (fr)
WO (1) WO1989000955A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006036137A1 (de) * 2006-07-28 2008-01-31 Q-Bag Packaging Machinery Gmbh & Co. Kg Verpackungsbehälter

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US5147054A (en) * 1991-05-20 1992-09-15 Pehr Harold T Tamper-proof container
US5242106A (en) * 1991-11-22 1993-09-07 Gulf State Paper Corporation Closed carton assembly with improved opening facilitating cuts
DE4243020A1 (de) * 1992-12-18 1994-06-30 Bosch Gmbh Robert Überdruckventil für Verpackungsbehälter
US5419638A (en) * 1993-05-06 1995-05-30 Jamison; Mark D. Pressure sensitive gas valve for flexible pouch
US5326022A (en) * 1993-06-10 1994-07-05 Gulf States Paper Corporation Carton with vent opening arrangement
ES2081266B1 (es) * 1994-08-12 1996-09-01 Mayordomo Alvaro Grandoso Envase de liquidos lacteos para conservacion y calentamiento.
FR2788495B1 (fr) * 1999-01-15 2001-04-06 Robert Planet Concept de decoupe sur bouteille plastique et opercule amovible permettant empilage et recyclage des bouteilles
DE19954899A1 (de) * 1999-11-15 2001-05-17 Schreiner Etiketten Wandteil für Behältnisse o. dgl.
JP4716537B2 (ja) * 2000-01-28 2011-07-06 花王株式会社 粉末洗剤の保存方法
DE10034298A1 (de) * 2000-07-14 2002-01-24 Steinbeis Ppl Gmbh Verschlussanordnung an einer Öffnung in einer Behälterwand
NZ507414A (en) * 2000-10-11 2003-02-28 Michael Clements Markham Method of forming a valve bag
US8017681B2 (en) 2006-03-30 2011-09-13 Maxwell Products, Inc. Systems and methods for providing a thermoplastic product that includes packaging therefor
US9187229B2 (en) 2011-08-31 2015-11-17 Plitek, L.L.C. Oil-less pressure relief valves
US8636034B2 (en) 2011-08-31 2014-01-28 Plitek, L.L.C. Oil-less and wetted pressure relief valves having an integrated filter
US8783292B2 (en) 2011-08-31 2014-07-22 Plitek, L.L.C. Oil-less pressure relief valves
US9181007B2 (en) 2013-03-12 2015-11-10 Rexam Beverage Can Company Beverage can end with vent port
US9926102B2 (en) 2014-06-05 2018-03-27 Maxwell Properties, Llc Systems and methods for providing a packaged thermoplastic material
US10358296B2 (en) 2015-09-18 2019-07-23 Maxwell Properties, Llc Systems and methods for delivering asphalt concrete
US9598204B1 (en) * 2016-01-20 2017-03-21 Albion Engineering Company Lid with breakaway skim plate for container for loading bulk material therefrom
US10358275B1 (en) 2017-06-16 2019-07-23 Plitek, L.L.C. Pressure relief valve with a plural-part dry strap
EP4005939B1 (fr) * 2019-07-30 2025-05-14 Kikuo Yamada Corps de couvercle
US11352183B2 (en) 2020-03-05 2022-06-07 Plitek, L.L.C. Pressure relief valve with wetting fluid reservoirs

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DE1909232A1 (de) * 1969-02-25 1970-09-17 Costello Alfred Patrick Ventil fuer Verpackungen
US3989182A (en) * 1976-02-12 1976-11-02 Great Plains Bag Corporation Vented bag
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US4215791A (en) * 1979-08-06 1980-08-05 Minnesota Mining And Manufacturing Company Easy open closure system
US4261504A (en) * 1979-09-21 1981-04-14 Maryland Cup Corporation Heat-sealable, ovenable containers
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CH659228A5 (de) * 1983-04-08 1987-01-15 Asepta Ag Behaelter mit deckel fuer gastreibende produkte.
GB2168312B (en) * 1984-12-13 1989-05-17 Metal Box Plc Containers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006036137A1 (de) * 2006-07-28 2008-01-31 Q-Bag Packaging Machinery Gmbh & Co. Kg Verpackungsbehälter

Also Published As

Publication number Publication date
JPH02504500A (ja) 1990-12-20
DE3726162A1 (de) 1989-02-16
US4971218A (en) 1990-11-20
DE3863359D1 (de) 1991-07-25
EP0377569A1 (fr) 1990-07-18
WO1989000955A1 (fr) 1989-02-09

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