EP0729428B1 - Kartonschachtel mit einrichtung zum verriegeln des deckels und zuschnitt zu ihrer herstellung - Google Patents

Kartonschachtel mit einrichtung zum verriegeln des deckels und zuschnitt zu ihrer herstellung Download PDF

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Publication number
EP0729428B1
EP0729428B1 EP95902157A EP95902157A EP0729428B1 EP 0729428 B1 EP0729428 B1 EP 0729428B1 EP 95902157 A EP95902157 A EP 95902157A EP 95902157 A EP95902157 A EP 95902157A EP 0729428 B1 EP0729428 B1 EP 0729428B1
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EP
European Patent Office
Prior art keywords
flaps
tab
flap
line
folding lines
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
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EP95902157A
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English (en)
French (fr)
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EP0729428A1 (de
Inventor
Jean-Claude Moreau
Guy Coalier
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Otor SA
Original Assignee
Otor SA
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Publication date
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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
    • B65D5/02—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 or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/10—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 or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end closures formed by inward-folding of self-locking flaps hinged to tubular body

Definitions

  • the present invention aims to provide a box and a flan responding better than those previously known to requirements of the practice in particular in that it offers a lid locking system allowing good squaring the box when it is closed, simple and easy to implement, at no additional cost, and authorizing successive locks and unlocks cover, easy, reliable and reproducible.
  • the invention notably proposes a box of material made of corrugated cardboard sheet or equivalent having a polygonal section, said box being of the type mentioned above, characterized in that the end of each tab is in the shape of a point and is arranged to come into abutment from below with the peripheral edge the corresponding slot located on the side opposite to the fold line of said tongue, over a distance h less than or equal to around 5mm.
  • Figure 1 shows a blank 1 comprising a series of eight side flaps, namely four flaps main including two large shutters 2 and 3 interspersed with two small parts 4 and 5, and four parts intermediaries 6 suitable for forming the cut corners of the body, said intermediate flaps being respectively between a large flap and a small flap when the fund is formed.
  • shutters are finished on one side, in the embodiment more particularly described here, by a tab 7 suitable for being fixed on the intermediate flap 6 attached to the flap main 2 located on the other side of the suite flaps relative to said tongue.
  • Shutters are interconnected by the first lines of parallel folding 8.
  • the blank includes a first set of flaps 9 located on one side of the flaps and intended to form the bottom of the box, and a second set 10 of flaps located on the other side of the shutters and intended to form the cover of the box.
  • the first set 9 includes four substantially rectangular flaps connected to the lateral sides of the four flaps main by fold lines 11, perpendicular to the first fold lines, at know two large flaps 12 and 13, connected to the large flaps 2 and 3, and two small flaps 14 and 15, connected with small flaps 4 and 5.
  • the intermediate flaps 6 are devoid of flaps.
  • the two large flaps 12 and 13 have a width, in the direction transverse, equal to or substantially equal to half the width of the box formed.
  • the large flaps 12 and 13 are identical. Each large flap has three sides 12.1, 12.2 and 12.3, (13.1, 13.2 and 13.3) namely two sides side 12.1 and 12.3 (13.1 and 13.3) located on the side on either side of said flap and one side 12.2 (13.2) parallel and opposite to the second fold line 11 of the flap with the corresponding flap.
  • Each lateral side of the large flap comprises a first part at an angle of 45 ° to the outside of the flap from the second fold lines, arranged to cover the adjacent intermediate flap when the body is formed, said first part being extended by a second part perpendicular to said second fold lines, said lateral side ending at the angle with the peripheral edge by a notch 16 having a first recess 17, towards the inside of the flap, for example rounded, and a second recess 18, always directed towards the inside of the flap, for example at a right angle, the length of the peripheral edge 12.2; 13.2 on the parallel side between upper ends 16 ′ of the notches being L.
  • the small flaps 14 and 15 are identical and rectangular, in the mode of realization more particularly described here. Their lateral sides are also located at a distance lateral sides of the corresponding large flaps, for example a few millimeters.
  • the second set 10 of flaps is connected to the four main strands by third lines of folding 19, 20 and 21 perpendicular to the first fold lines 8. More precisely the second set has two large flaps 22 and 23 connected respectively to the large shutters by the lines of folding 19, and two small flaps 24 and 25 connected respectively to the small shutters by the lines of folding 20 and 21, as will be described more specifically below.
  • Large flaps 22 and 23 each include three sides respectively 22.1, 22.2 and 22.3 and 23.1, 23.2 and 23.3, namely two lateral sides [22.1 and 22.3; 23.1 and 23.3] and a parallel side and opposite the third fold lines [22.2 and 23.2].
  • Each lateral side includes a first angled at 45 ° outwards from third fold lines arranged to come styling the corresponding intermediate flaps when the body is formed, a second part perpendicular to the third lines and part end 26 beveled towards the inside of the flap.
  • the peripheral edges of the sides 22.2 and 23.2 moreover respectively comprise two identical rectangular or substantially rectangular slots 27 and 28, perpendicular to said edges, located on either side of the flap at a determined distance d from the lateral edges 22.1 and 22.3 d ' on the one hand, 23.1 and 23.3 on the other hand, of length x / 2 and of width e, for example from 3 to 5 mm.
  • the width l of the flaps 22 and 23, between the fold lines 19 and the peripheral edges 22.2 and 23.2, is equal to half the width of the cover of the box, so that, when the latter is formed, said edges are joined, the slots 27 and 28 of the flap 22 facing the corresponding slots 27 and 28 of the flap 23, to form two identical parallel slots straddling the junction between flaps.
  • the small flaps 24 and 25 are rectangular, for example of the same width l as the large flaps 22 and 23. They each have a tongue 29 cut on one side in the flap and connected on the other side to the flap 4 or 5 by a fold line 21 slightly offset towards the inside of the flap, for example by 1 or 2 mm relative to the fold line 20, which is distributed on either side of said tongue centered relative to the Rabat.
  • the tongue has an end 30 shaped tip, for example forming an obtuse vertex angle of the order of 160 or 170 °, the distance between the fold line 21 and the end of the tip 30 being of, with of slightly greater than d for example greater than two to three millimeters to d.
  • the tongue also has a shape in T complementary to that of two notches 16 symmetrically joined.
  • Figures 2 to 5 show the formation of a box 31 with cut corners 32, formed with a blank of the type shown in Figure 1.
  • Box 31 has side faces main 33, a bottom 34 and a cover 35, comprising two opposite upper flaps 36 identical and two opposite lower flaps identical 37, connected respectively to the faces side by fold lines 38 and 39.
  • Figures 4 and 5 show more precisely the cover of the box which comprises two slots 40 formed in the upper flaps respectively on either side of the cover, parallel to, and at the distance d from, fold lines 39 of the lower flaps 37, with the faces to which they are connected.
  • Lid also includes two tabs 41, cut on one side in said flaps lower 37, and articulated on the other side respectively with respect to the lateral face corresponding to said flap 37, around lines of folding 42 parallel and slightly above the fold lines 39 of lower flaps 37.
  • the tabs cover the flaps superiors, who themselves cover the part complementary to the cutting of the flap tabs lower, the end 43 of said tabs snapping into the slots 40.
  • the bottom of the body has two small interior flaps 44 and two large flaps external 45 respectively connected to the faces corresponding sides by fold lines 46 and 47.
  • the bottom includes two recesses 48, of shape complementary to that of the tabs, so that when stacking boxes on top of each other others, the tabs fit into the recesses of an upper box, which allows a lateral locking of the boxes against each other other.
  • FIG. 6 Another mode has been represented in FIG. 6. for producing a blank 50 according to the invention.
  • the blank 50 here comprises only four flaps 51, and a bonding tab 52 end, to form a box cuboid.
  • the flaps 53 forming the cover are here same width, two of said flaps include tabs 54, of substantially rectangular shape the end of which is adapted to cooperate with the half-slots 55 which, when joined, form the slots of the cover as described above.
  • the flaps 56 forming the bottom of the box are, for example, devoid of indentations here, and are classic type, for American box.
  • the side walls of the body are formed by winding around a mandrel, the flaps interior of the bottom being first folded. Then the outer flaps are in turn folded over the interior flaps, as shown in Figure 2.
  • Figure 7 shows a blank 60 of corrugated cardboard double-sided, for example very thick (higher at 5mm) according to another embodiment of the invention, comprising four side flaps rectangular 61, 62, 63 and 64 connected two by two by fold lines 65 parallel to each other.
  • the blank is finished laterally, on one side, by a bonding tab 66 and comprises, in the transverse direction, on one side, a first set 67 of four flaps connected respectively to one side of each side flap by second lines of folding 68 perpendicular to the first and intended for form the bottom of the body, and, on the other side, a second set 69 of four flaps connected to the side opposite of said flaps by third lines of folding 70, and intended to form the cover of the checkout.
  • Set 69 consists of two flaps lateral 71 and 72 rectangular, called flaps upper, interspersed with two side flaps 73 and 74, called lower flaps.
  • the lower flaps are for example trapezoidal, isosceles, including angle at base ⁇ between around 88 ° and around 70 °.
  • Each tongue comprises a lower part in the form of an isosceles trapezium advantageously of height d 0 and of angle at the base ⁇ (long side of the trapezoid), said base being coincident or substantially coincident with the fold line 70.
  • the angle ⁇ is for example between about 85 ° and about 60 °, for example equal to 80 °.
  • the tongue is terminated by a triangular end portion 76, with an obtuse apex angle for example equal to around 160 ° and of low height i , for example equal to 2mm.
  • the upper flaps 71 and 72 comprise, for their part, and starting from their peripheral edge 77 opposite the fold lines 70, a rectangular half-slot 78, perpendicular to said peripheral edge 77 and whose internal edge 79 (directed towards the center of the flap) is located at a distance equal to or substantially equal to d 0 , from the nearest adjacent lateral edge 79 of the flap, perpendicular to the peripheral edge 77 of said flap.
  • Each half-slot 78 ends with a cut or breakable line 80, directed at an angle towards the adjacent edge 79 and the fold line 70, over a determined length l for example equal to around 1 to 2 cm.
  • the assembly 67 intended to form the bottom of the body includes two flaps 81 and 82 substantially rectangular, inserted two by two with two isosceles trapezoidal flaps 83 and 84.
  • the flaps 81 and 82 each have an edge outdoor device 85 in two parts for example equal, parallel to the second fold lines 68, said edge being provided with a recess between its two parts.
  • Each end of the flaps 81 and 82 includes '' also a hollow part 87 or 88 of shape complementary to that of a half-tab, as we saw it previously.
  • cut lines 80 facilitates openings and closings successive cases of the fund 89.
  • the release of the tongue 75 is produced by pressing the upper flaps 71 and 72 adjacent to the tongue, or by pushing in the middle of the crate cover, allowing the tongue whose end is hardly engaged under the upper flaps beyond the slot 90 constituted by the two half-slots 78, to free themselves automatically with good elasticity, the part internal 91 of the upper flaps, bounded by lines 80, acting as a return spring.

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

Claims (12)

  1. Kiste (31, 89) aus Wellpappfolie oder einem gleichwertigen Material mit einem polygonalen Abschnitt, welche aufweist Seitenflächen (33), einen Boden (34) und einen Deckel (35), umfassend zwei einander gegenüberliegende obere Klappen (36) und zwei über den genannten oberen Klappen angeordnete, einander gegenüberliegende untere Klappen (37), wobei die genannten Klappen jeweils durch Falzlinien (38, 39) mit den Seitenflächen verbunden sind und wobei der Deckel (35) aufweist:
    zwei Schlitze (40, 90), welche in den oberen Klappen (36, 71, 72) jeweils beiderseits des Deckels parallel und in einem Abstand (d, d0 ) zu den Falzlinien (39) der unteren Klappen (37) ausgebildet sind, und
    zwei Laschen (41, 75), die jeweils auf einer Seite aus den unteren Klappen ausgeschnitten und auf der anderen Seite jeweils parallel zu den Falzlinien (39) der genannten unteren Klappen gelenkig angebracht sind, die genannten oberen Klappen jeweils bedecken und jeweils ein Ende (43) aufweisen, welches in einen entsprechenden Schlitz im Deckel eingreift, dadurch gekennzeichnet, daß das Ende (43) jeder der Laschen eine Spitze bildet und daß die Länge d' der genannten Laschen zwischen dem Ende der Spitze und der Falzlinie der Lasche mit dem Umschlag, woran sie befestigt ist, etwas größer ist als der genannte Abstand (d, d0 ), wobei die genannten Enden unterhalb jeweils an der auf der gegenüberliegenden Seite der Falzlinie der Lasche gelegenen Umfangskante des entsprechenden Schlitzes über einen Abstand h, welcher in der Größenordnung von 5 mm oder weniger liegt, zum Anschlag kommen.
  2. Kiste nach Anspruch 1, dadurch gekennzeichnet, daß h in der Größenordnung von 2 mm oder weniger liegt.
  3. Kiste nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß jeder Schlitz (40) aus zwei Halbschlitzen besteht, die jeweils gegenüberliegend in den Umfangskanten der oberen Klappen (36) vorgesehen sind, wobei die Laschen (41) seitlich im Verhältnis zu den entsprechenden unteren Klappen (37) zentriert sind.
  4. Kiste nach Anspruch 3, dadurch gekennzeichnet, daß jeder Halbschlitz mit seinem auf der gegenüberliegenden Seite des anderen Halbschlitzes gelegenen Endteil durch eine teilbare oder ausgeschnittene Linie (80) in der entsprechenden oberen Klappe verlängert ist, wobei die genannte Linie über einen bestimmten Abstand zu der Falzlinie der unteren Klappe der den genannten Halbschlitzen entsprechenden Lasche (75) hin verläuft und sich in Höhe der entsprechenden Kante der genannten Lasche befindet.
  5. Kiste nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß jede Lasche (41) im wesentlichen die Form eines T aufweist, dessen Querbalken im Verhältnis zur entsprechenden Fläche mit der Falzlinie (39) der Lasche verbunden ist.
  6. Kiste nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß jede Lasche (75) im wesentlichen die Form eines Rechtecks oder eines gleichschenkligen Trapezes hat, welches in einem dreieckigen Teil mit stumpfem Spitzenwinkel ausläuft.
  7. Kiste nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Boden (34) aus Klappen (44, 45) besteht, die jeweils mit den Seitenflächen durch Falzlinien (46, 47) verbunden sind, und zwar zwei einander gegenüberliegenden Innenklappen (44) und zwei einander gegenüberliegenden Außenklappen (45), wobei der genannte Boden zwei Aussparungen (48) in den genannten Außenklappen umfaßt, deren Form zu derjenigen der Laschen (41) paßt.
  8. Zuschnitt (1, 50, 60) aus Wellpappfolie oder einem gleichwertigen Material, bestimmt zur Ausbildung einer Kiste mit polygonalem Querschnitt, umfassend:
    seitliche Umschläge (2, 3, 4, 5, 6; 51; 61, 62, 63, 64), die miteinander durch erste, parallel verlaufende Falzlinien verbunden sind,
    eine erste Anordnung (9, 56, 67) von Klappen, die mit einer Seite der genannten seitlichen Umschläge durch zweite, orthogonal zu den genannten ersten Falzlinien verlaufende Falzlinien verbunden und geeignet sind, den Boden der Kiste zu bilden, und
    eine zweite Anordnung (10, 53, 69) von Klappen, die mit der anderen Seite der genannten seitlichen Umschläge durch dritte, orthogonal zu den genannten ersten Falzlinien verlaufende Falzlinien verbunden und geeignet sind, den Deckel der Kiste zu bilden, wobei die genannte Anordnung aus zwei als obere Klappen bezeichneten Seitenklappen (22, 23; 71, 72) besteht, zwischen denen zwei als untere Klappen bezeichnete Seitenklappen (24, 25; 73, 74) liegen, wobei die genannten unteren Klappen jeweils eine Lasche (29, 54, 75) aufweisen, welche auf einer Seite aus der genannten Klappe ausgeschnitten und auf der anderen Seite mit dem angrenzenden Umschlag durch eine Falzlinie verbunden ist, die im wesentlichen mit der dritten Falzlinie der genannten Klappe ineinanderfließt, wobei die Umfangskanten (22.2, 23.2; 77) der den dritten Falzlinien gegenüberliegenden oberen Klappen jeweils zwei Schlitzteile (27, 28; 55; 78) aufweisen, die beiderseits der genannten oberen Klappen in einem bestimmten Abstand (d, d0 ) zu den Seitenkanten der genannten entsprechenden Klappen liegen, dadurch gekennzeichnet, daß das Ende der Laschen die Form einer Spitze hat und die Länge der genannten Laschen d' zwischen dem Ende der Spitze und der Falzlinie der Lasche mit dem Umschlag, woran sie befestigt ist, etwas größer ist als der genannte Abstand (d, d0 ), und zwar um einen Abstand h, der in der Größenordnung von 5 mm oder weniger liegt.
  9. Zuschnitt nach Anspruch 8, dadurch gekennzeichnet, daß jeder Halbschlitz (78) an seinem Endteil, der der äußeren Umfangskante (77) der entsprechenden oberen Klappe (71, 72) gegenüberliegt, durch eine teilbare oder in der genannten oberen Klappe über einen bestimmten Abstand ausgeschnittene Linie verlängert ist, wobei die genannte teilbare oder ausgeschnittene Linie schräg zu der Falzlinie (70) der oberen Klappe und zu der seitlichen Umfangskante (79) des genannten oberen Umschlags, der dem genannten Halbschlitz am nächsten liegt, hin verläuft und so angeordnet ist, daß sie sich nach Ausbildung der Kiste in Höhe der entsprechenden Kante der Lasche befindet.
  10. Zuschnitt nach einem der Ansprüche 8 und 9, dadurch gekennzeichnet, daß jede Lasche (29) im wesentlichen die Form eines T hat, dessen Querbalken mit dem mittleren Teil der entsprechenden dritten Falzlinien (20), parallel dazu und gegenüber dem Innern der Klappe im Verhältnis zu diesen leicht versetzt ist.
  11. Zuschnitt nach einem der Ansprüche 8 und 9, dadurch gekennzeichnet, daß jede Lasche (54, 75) im wesentlichen die Form eines Rechtecks oder gleichschenkligen Trapezes hat, welches in einem dreieckigen Teil mit stumpfem Spitzenwinkel ausläuft.
  12. Zuschnitt nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, daß die Seiten der Bodenklappen, welche den auf der anderen Seite mit den oberen Klappen versehenen Seitenflächen entsprechen, halbmondförmige Aussparungen (16; 87, 88) aufweisen, deren Form zu derjenigen einer Halblasche paßt.
EP95902157A 1993-11-19 1994-11-18 Kartonschachtel mit einrichtung zum verriegeln des deckels und zuschnitt zu ihrer herstellung Expired - Lifetime EP0729428B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9313894A FR2712567B1 (fr) 1993-11-19 1993-11-19 Caisse de matière en feuille avec verrouillage du couvercle et flan pour la réalisation d'une telle caisse.
FR9313894 1993-11-19
PCT/FR1994/001355 WO1995013968A1 (fr) 1993-11-19 1994-11-18 Caisse de matiere en feuille avec verrouillage du couvercle et flan pour la realisation d'une telle caisse

Publications (2)

Publication Number Publication Date
EP0729428A1 EP0729428A1 (de) 1996-09-04
EP0729428B1 true EP0729428B1 (de) 2002-04-03

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Application Number Title Priority Date Filing Date
EP95902157A Expired - Lifetime EP0729428B1 (de) 1993-11-19 1994-11-18 Kartonschachtel mit einrichtung zum verriegeln des deckels und zuschnitt zu ihrer herstellung

Country Status (10)

Country Link
EP (1) EP0729428B1 (de)
JP (1) JP3654649B2 (de)
AU (1) AU685886B2 (de)
CA (1) CA2176586A1 (de)
CZ (1) CZ144096A3 (de)
DE (1) DE69430319T2 (de)
FR (1) FR2712567B1 (de)
NZ (1) NZ276733A (de)
PL (1) PL314472A1 (de)
WO (1) WO1995013968A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2441817B (en) * 2006-09-12 2011-08-17 Ds Smith Packaging Ltd A blank
JP5834641B2 (ja) * 2011-09-02 2015-12-24 凸版印刷株式会社 包装用箱
JP6627362B2 (ja) * 2015-09-18 2020-01-08 王子ホールディングス株式会社 包装箱
JP2021054524A (ja) * 2019-10-02 2021-04-08 王子ホールディングス株式会社 包装箱

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2167917A (en) * 1936-04-29 1939-08-01 Owens Illinois Glass Co Carton
US2451644A (en) * 1946-04-02 1948-10-19 Geoffrey H Wood Container
FR1083621A (fr) * 1953-06-19 1955-01-11 Clergeau Papeteries Leon Dispositif de découpe pour caissette, type américain, en carton
FR82619E (fr) * 1962-09-24 1964-03-20 Emballage pour produits de forme ronde
US3272421A (en) * 1964-05-11 1966-09-13 Owens Illinois Inc Self-locking carton
US3302853A (en) * 1965-06-21 1967-02-07 Waldorf Paper Prod Co Container closures
FR2160735B3 (de) * 1971-11-24 1974-07-19 Ici Ltd
US4702408A (en) * 1986-05-23 1987-10-27 The Mead Corporation Bulk bin

Also Published As

Publication number Publication date
CA2176586A1 (fr) 1995-05-26
AU685886B2 (en) 1998-01-29
AU1111395A (en) 1995-06-06
FR2712567A1 (fr) 1995-05-24
CZ144096A3 (en) 1997-03-12
JPH09505018A (ja) 1997-05-20
DE69430319T2 (de) 2003-04-17
PL314472A1 (en) 1996-09-16
DE69430319D1 (de) 2002-05-08
WO1995013968A1 (fr) 1995-05-26
FR2712567B1 (fr) 1996-01-12
EP0729428A1 (de) 1996-09-04
NZ276733A (en) 1997-12-19
JP3654649B2 (ja) 2005-06-02

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