EP0178730A2 - Plateau repliable avec des parois latérales de grande profondeur - Google Patents

Plateau repliable avec des parois latérales de grande profondeur Download PDF

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Publication number
EP0178730A2
EP0178730A2 EP85201659A EP85201659A EP0178730A2 EP 0178730 A2 EP0178730 A2 EP 0178730A2 EP 85201659 A EP85201659 A EP 85201659A EP 85201659 A EP85201659 A EP 85201659A EP 0178730 A2 EP0178730 A2 EP 0178730A2
Authority
EP
European Patent Office
Prior art keywords
tray
walls
wall
fold line
along
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.)
Granted
Application number
EP85201659A
Other languages
German (de)
English (en)
Other versions
EP0178730B1 (fr
EP0178730A3 (en
Inventor
Tony Noren
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT85201659T priority Critical patent/ATE45919T1/de
Publication of EP0178730A2 publication Critical patent/EP0178730A2/fr
Publication of EP0178730A3 publication Critical patent/EP0178730A3/en
Application granted granted Critical
Publication of EP0178730B1 publication Critical patent/EP0178730B1/fr
Expired 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/20—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/24—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
    • B65D5/241—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds and the gussets folds connected to the inside of the container body
    • B65D5/243—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds and the gussets folds connected to the inside of the container body the container body comprising a continuous rim or flange
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/20—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/2038—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form at least two opposed folded-up portions having a non-rectangular shape
    • B65D5/2047—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form at least two opposed folded-up portions having a non-rectangular shape trapezoidal, e.g. to form a body with diverging side walls
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/36—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper specially constructed to allow collapsing and re-erecting without disengagement of side or bottom connections
    • B65D5/3607—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper specially constructed to allow collapsing and re-erecting without disengagement of side or bottom connections formed by folding or erecting a single blank
    • B65D5/3635—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper specially constructed to allow collapsing and re-erecting without disengagement of side or bottom connections formed by folding or erecting a single blank by folding-up portions connected to a central panel from all sides to form a container body
    • B65D5/3642—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper specially constructed to allow collapsing and re-erecting without disengagement of side or bottom connections formed by folding or erecting a single blank by folding-up portions connected to a central panel from all sides to form a container body the secured corners presenting diagonal, bissecting or similar folding lines, the central panel presenting no folding line
    • B65D5/3657—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper specially constructed to allow collapsing and re-erecting without disengagement of side or bottom connections formed by folding or erecting a single blank by folding-up portions connected to a central panel from all sides to form a container body the secured corners presenting diagonal, bissecting or similar folding lines, the central panel presenting no folding line the adjacent sides being interconnected by gusset folds
    • 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
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2004—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being maintained on the container by mechanical means, e.g. crimping, clamping, riveting

Definitions

  • the present invention relates to a collapsible high-sided tray manufactured from a planar rigid blank having a rectangular base, defined by four base edges, and four walls, each of which.presents firstly a lower edge which coincides with a respective one of said base edges and secondly two side edges, each of which coincides along a given length with a respective side edge on an adjacent wall, and thirdly an upper free edge.
  • collapsible high-sided trays are known to the art, for example from U.S.Patent Specification No. 1 760 325.
  • the collapsible trays known hitherto are not sufficiently stable or rigid when erected, since the additional fold lines or score lines necessary to impart foldability result in an indefinite and flimsy tray construction.
  • the known trays are not constructed in a manner which enables them to be stored in a storage holder in a collapsed state, and quickly removed from the holder and erected.
  • the invention is to provide a collapsible high-sided tray which exhibits none of the aforesaid drawbacks.
  • the high-sided tray according to the invention obtains a high degree of flexibility due to the fact that it is foldable along the second and third fold or score lines and can be stabilized in its erected state through the agency of the first fold lines. Because the first fold lines cross the second and the third fold lines at oblique angles thereto, when the tray is folded along the first fold lines, the second and the third fold lines are divided into two differently directed fold parts which can not both be folded at the same time.
  • Trays which are constructed in accordance with the present invention can also be stacked when collapsed, in a container therefor, from which they can be removed singly while being erected at the same time upon passage through a slot-like opening in the container.
  • the tray embodiment illustrated in Figure 1 comprises a four cornered, preferably rectangular base 1 defined by four bottom edges 2-5 and presenting four walls 6-9, each of which has a lower edge which coincides with a respective bottom edge 2-5, and two side edges 10 and 11, 11 and 12, 12 and 13, and 13 and 10 respectively, each of which coincides with a respective side edge of an adjacent wall over a pre-determined distance, this distance equalling about 70-90% of the length of a side edge, calculated from the lower corner of the wall.
  • the walls 6-9 also present free upper edges 14-17.
  • Each of the walls 6-9 has the shape of a parallel truncated triangle, the bases of respective triangles forming the free edges 14,15,16 and 17.
  • the tray walls thus lean slightly outwards, enabling a plurality of erected trays to be stacked one within the other.
  • the two mutually opposing walls6 and 8 are provided with a respective first fold line 18 and 19 which extends between the two side edges 10,11 and 12,13 of respective walls and parallel with respective lower wall edges 2 and 4.
  • Each of second and third fold lines 20,21 and 22, 23 extends from its respective one of the two lower corners of the walls band 8 adjacent the free edges 14,16 of said walls while intersecting the first fold line 18 and 19 respectively at an oblique angle v I which if the walls do not lean is about 45° and which in the illustrated embodiment of Figure 1 having inclined or leaning walls exceeds 45°, in proportion to the extent to which the sides lean.
  • each of the fold lines 20-23 is divided by the fold lines 18 and 19 into a first, lower part 20a, 21a, 22a and 23a located beneath a respective fold line 18 and 19, and a second, upper part 20b, 21b, 22b and 23b located above a respective fold line 18 and 19.
  • Each of the fold lines 20-23 forms an angle v 2 of about 45° with a respective side edge 10,11,12 and 13 exten ding from the same corners as said lines, such that folding can be effected along the lines 20-23 under certain conditions when erecting the tray, as made more apparent hereinafter.
  • Each of the remaining two sides 9 and 7 is provided with a respective fold line 25 and 24 which extends between respective wall side-edges 10,13 and 11,12 parallel with respective lower edges 5 and 3 of said walls and at the same height from the base 1 of the erected tray as the fold lines 18 and 19 on the first mentioned walls 6 and 8.
  • the tray illustrated in Figure 1 can be folded to the configuration shown in Figure 3, by folding the tray walls 7 and 9 in towards or against the centre of the tray, wherewith the walls 6 and 8 automatically fold along the fold lines 20-23, as shown in Figure 3.
  • Figure 4 illustrates a pre-cut planar blank which is made of cardboard or like material treated with a synthetic resin substance and which can be folded to and secured in the tray configuration illustrated in Figures 1-3. Extending from each of the four corners of the panel forming the tray base are two further fold lines 30a-b, 31a-b, 32a-b and 33a-b respectively. The manner in which the corner sections of the tray are joined together is the same for all four corners, and hence in the following reference in this respect will be made solely to the lower right-hand corner section in Figure 4.
  • the blank is first folded along the lines 11, 31a and 31b, whereafter the blank portions located between the lines 11, 31a and 31a and 31b are caused to overlap one another and also part of the blank portion located between the lines 31b and 21a.
  • the line 31a is located centrally between the lines 11 and 31b, so that they therewith coincide with one another and together form the side edge 11 illustrated in Figures 1-3.
  • the corner part is then fixed in its raised position as by gluing, riviting or welding of the plastics-treated outer surface of the tray blank.
  • the triangular part of the blank located between the lines 31a and 31b may be removed, so that only the part located between the lines 11 and 31a need be fixed to the wall 6.
  • the fold lines 24 and 25 are interrupted between two points 34,35 and 36, 37 respectively, which constitute the respective terminal points of a U-shaped slot 38 and 39 which extends into corresponding rim sections 28 and 29.
  • each of the slots 38 and 39 forms a respective locking tongue, as illustrated in Figures 2 and 5.
  • Two elongated, narrow locking apertures in the form of slots 40 and 41 are provided in the remaining two rim sections 14 and 16, the one longitudinally extending edge of respective slots preferably falling on its associated fold line 18 or 19.
  • the lid 42 which comprises a planar cardboard blank or the like treated with a synthetic resin composition, presents two locking flaps 43 and 44, formed for example by punching out material from the edges of the lid, and two apertures 45 and 46, formed for example by through--punching, said flaps and apertures being intended for locking co-action with the locking slots 40 and 41 and the locking tongues 38 and 39 of the tray.
  • Each of the apertures 45 and 46 suitably comprises an elongated slot 45a and 46a respectively intended to receive a respective locking tongue on the tray, and two shorter slots 45b,c and 46b,c extending transversally to an associated elongated slot 45a and 46a, thereby to form two locking flaps between the slots 45b and c and between the slots 46b and c respectively.
  • the lid 42 can thus be secured to the tray, by simply placing the lid against the rim section and exerting a slight pressure on the lid, so that it snaps firmly into position against said rim sections.
  • the lid can be fastened to the tray by means of welds or the like.
  • the locking slots and tongues on the rim sections and the locking slots and flaps on the lid can be omitted.
  • Figure 6 illustrates a holder 47 which is adapted to accommodate a plurality of collapsed trays placed in a stack therein.
  • the trays can be removed singly from the holder 47 and caused to unfold to their erected state at the same time as they are removed. ;
  • the holder 47 has a bottom wall 48 and four vertical walls 49-52.
  • the wall 49 presents along its vertical centre line a slot like opening 53 having a uniform width substantially equal to the distance between the fold lines 18 and 19 of the two walls 6 and 8.
  • the collapsed trays are placed one upon the other in the holder 47 to form a stack 54 with each of the lower edges 3 and 7 of the walls 7 and 9 lying parallel with the width axis of the slot 53.
  • a holding-down weight in the form of a rectangular plate 55 made, for example, of metal or a plastics material.
  • the plate 55 is provided on each of two mutually sides with a rectangular recess 56 and 57, such as to obtain an H-shape, with the web 58 mutually separating the recesses 56 and 57.
  • the plate 55 is positioned so that its one recess, e.g. the recess 56, faces the slot opening 53.
  • the wall 7 of the uppermost collapsed tray can be gripped, either by the hand or a suitable gripping tool, and horizontal withdrawal of the tray through the slot opening 53 initiated. Since the width of a collapsed tray is too great for the tray to pass through the slot 53, the edges defining the slot will engage the tray walls 6 and 7 and guide the same to a raised position, so that the tray can pass through the slot.
  • the trailing edge of the web 58 of the holding--down plate hooks onto the rear wall 9 of the tray at the same time, causing the wall to lift, thereby assisting in erecting the collapsed tray as it is withdrawn from the holder.
  • the free edges 14 and 16 are raised during withdrawal of the tray, they simultaneously lift the holding-down plate 55, so that the tray will slide beneath the plate as withdrawal of the tray proceeds.
  • the web 58 releases its engagement with the wall 9, since the wall is then able to slide beneath the web. Release of the wall 9 from the web 58 is facilitated by the presence of the foldable rim section 29.
  • the plate 55 falls back onto the uppermost tray in the stack 54.
  • the plate 55 may have a shape different to that illustrated.
  • One condition, however, is that the plate has a width which is at least equal to the distance between the free edges 14 and 16 in the collapsed state of the tray, so that the plate is lifted by said edges as the tray opens out.
  • the hooking element 57 may have the form of a recess, but may alternatively have the form of at least one outwardly projecting tongue or the like (not shown) capable of hooking onto the rear wall 9 when the tray is drawn through the slot opening 53.
  • the choice of hooking element on the plate 55 is governed by the extent of the space available between the free edges 15 and 17 of the tray in its collapsed state.
  • the hooking element may also conceivably have the form of one or more tongues or the like arranged in the recess 57 and extending from the rearward edge of the web 58.
  • the hooking element may also comprise one or more tongues or the like projecting from underneath plate 55. In this case no recess 57 is needed in the plate.
EP85201659A 1984-10-16 1985-10-11 Plateau repliable avec des parois latérales de grande profondeur Expired EP0178730B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85201659T ATE45919T1 (de) 1984-10-16 1985-10-11 Zusammenfaltbarer tablettartiger behaelter mit hohen seitenwaenden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8405157A SE449728B (sv) 1984-10-16 1984-10-16 Hopvikbart trag
SE8405157 1984-10-16

Publications (3)

Publication Number Publication Date
EP0178730A2 true EP0178730A2 (fr) 1986-04-23
EP0178730A3 EP0178730A3 (en) 1988-01-13
EP0178730B1 EP0178730B1 (fr) 1989-08-30

Family

ID=20357363

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85201659A Expired EP0178730B1 (fr) 1984-10-16 1985-10-11 Plateau repliable avec des parois latérales de grande profondeur

Country Status (7)

Country Link
EP (1) EP0178730B1 (fr)
AT (1) ATE45919T1 (fr)
DE (1) DE3572637D1 (fr)
DK (1) DK160143C (fr)
FI (1) FI79816C (fr)
NO (1) NO167272C (fr)
SE (1) SE449728B (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237796A (en) * 1989-11-10 1991-05-15 Jowetts Limited Blanks for packaging
WO1993015962A1 (fr) * 1992-02-11 1993-08-19 Jean Posson Barquette etanche et son procede de mise en volume
EP1007341A1 (fr) * 1996-08-29 2000-06-14 Tony Norén Procede de production d'un emballage en forme d'auge et systeme de mise en oeuvre de ce procede
FR2816915A1 (fr) * 2000-11-23 2002-05-24 Philippe Andre Yvon Hautier Barquette pour l'alimentaire
WO2002016213A3 (fr) * 2000-08-22 2002-06-27 Mead Corp Plateau et decoupe
GB2407809A (en) * 2003-11-07 2005-05-11 Ds Smith Collapsible container
EP3130548A1 (fr) * 2015-08-13 2017-02-15 Packable B.V. Procédé de fabrication d'un objet et emballage
CN108082655A (zh) * 2018-01-11 2018-05-29 邵丹 一种包装盒及包装套盒
EP3473557A3 (fr) * 2017-10-18 2019-06-19 Groupe Guillin Emballage de conditionnement de produits alimentaires
WO2019243824A1 (fr) 2018-06-20 2019-12-26 Rapid Action Packaging Limited Plateau plié à plat et procédé de formation associé

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR8765E (fr) * 1907-12-20 1908-06-23 Nanceienne De Cartonnages Soc Boite pliante
US2736486A (en) * 1952-10-15 1956-02-28 Nat Container Corp Box with inwardly telescoping cover
DE1199178B (de) * 1960-06-11 1965-08-19 Fritz Reinhardt Faltschale
DE3200985A1 (de) * 1982-01-14 1983-07-21 Bobby Ling North Point Hongkong Lee Behaelter, insbesondere quaderfoermige versandbehaelter fuer kuenstliche blumen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR8765E (fr) * 1907-12-20 1908-06-23 Nanceienne De Cartonnages Soc Boite pliante
US2736486A (en) * 1952-10-15 1956-02-28 Nat Container Corp Box with inwardly telescoping cover
DE1199178B (de) * 1960-06-11 1965-08-19 Fritz Reinhardt Faltschale
DE3200985A1 (de) * 1982-01-14 1983-07-21 Bobby Ling North Point Hongkong Lee Behaelter, insbesondere quaderfoermige versandbehaelter fuer kuenstliche blumen

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237796A (en) * 1989-11-10 1991-05-15 Jowetts Limited Blanks for packaging
WO1993015962A1 (fr) * 1992-02-11 1993-08-19 Jean Posson Barquette etanche et son procede de mise en volume
US5954263A (en) * 1992-02-11 1999-09-21 Posson; Jean Liquid-tight boat-shaped packaging tray and its manufacturing method
EP1007341A1 (fr) * 1996-08-29 2000-06-14 Tony Norén Procede de production d'un emballage en forme d'auge et systeme de mise en oeuvre de ce procede
WO2002016213A3 (fr) * 2000-08-22 2002-06-27 Mead Corp Plateau et decoupe
US7216797B2 (en) 2000-08-22 2007-05-15 Meadwestvaco Packaging Systems, Llc Tray container and blank
FR2816915A1 (fr) * 2000-11-23 2002-05-24 Philippe Andre Yvon Hautier Barquette pour l'alimentaire
GB2407809A (en) * 2003-11-07 2005-05-11 Ds Smith Collapsible container
EP3130548A1 (fr) * 2015-08-13 2017-02-15 Packable B.V. Procédé de fabrication d'un objet et emballage
WO2017025257A1 (fr) * 2015-08-13 2017-02-16 Packable B.V. Procédé de fabrication d'un objet et d'un emballage
AU2016307114B2 (en) * 2015-08-13 2018-12-06 Packable B.V. Method for manufacturing an object and packaging
RU2682411C1 (ru) * 2015-08-13 2019-03-19 Пекебл Б.В. Способ изготовления предмета и упаковка
US11254079B2 (en) 2015-08-13 2022-02-22 Packable B.V. Method for manufacturing an object and packaging
EP3473557A3 (fr) * 2017-10-18 2019-06-19 Groupe Guillin Emballage de conditionnement de produits alimentaires
CN108082655A (zh) * 2018-01-11 2018-05-29 邵丹 一种包装盒及包装套盒
WO2019243824A1 (fr) 2018-06-20 2019-12-26 Rapid Action Packaging Limited Plateau plié à plat et procédé de formation associé
US20210253295A1 (en) * 2018-06-20 2021-08-19 Rapid Action Packaging Limited Fold flat tray and associated method of forming

Also Published As

Publication number Publication date
SE8405157L (sv) 1986-04-17
DE3572637D1 (en) 1989-10-05
DK160143C (da) 1991-07-08
NO167272B (no) 1991-07-15
SE8405157D0 (sv) 1984-10-16
FI854023A0 (fi) 1985-10-16
FI854023L (fi) 1986-04-17
EP0178730B1 (fr) 1989-08-30
SE449728B (sv) 1987-05-18
FI79816C (fi) 1990-03-12
NO167272C (no) 1991-10-23
DK471685A (da) 1986-04-17
DK471685D0 (da) 1985-10-15
EP0178730A3 (en) 1988-01-13
DK160143B (da) 1991-02-04
FI79816B (fi) 1989-11-30
ATE45919T1 (de) 1989-09-15
NO854073L (no) 1986-04-17

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