EP0020567B1 - Zuschnitt zum Aufbau eines Behälters - Google Patents

Zuschnitt zum Aufbau eines Behälters Download PDF

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Publication number
EP0020567B1
EP0020567B1 EP79901498A EP79901498A EP0020567B1 EP 0020567 B1 EP0020567 B1 EP 0020567B1 EP 79901498 A EP79901498 A EP 79901498A EP 79901498 A EP79901498 A EP 79901498A EP 0020567 B1 EP0020567 B1 EP 0020567B1
Authority
EP
European Patent Office
Prior art keywords
panels
score line
roof panels
panel
pair
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
EP79901498A
Other languages
English (en)
French (fr)
Other versions
EP0020567A1 (de
EP0020567A4 (de
Inventor
Robert E. Lisiecki
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.)
Ex-Cell-O Corp
Original Assignee
Ex-Cell-O Corp
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
Priority claimed from US05/957,393 external-priority patent/US4211357A/en
Application filed by Ex-Cell-O Corp filed Critical Ex-Cell-O Corp
Publication of EP0020567A1 publication Critical patent/EP0020567A1/de
Publication of EP0020567A4 publication Critical patent/EP0020567A4/de
Application granted granted Critical
Publication of EP0020567B1 publication Critical patent/EP0020567B1/de
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
    • B65D5/02—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
    • B65D5/06—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-closing or contents-supporting elements formed by folding inwardly a wall extending from, and continuously around, an end of the tubular body
    • B65D5/061—Rectangular containers having a body with gusset-flaps folded inwardly beneath the closure flaps

Definitions

  • This present invention relates to a coated paper-board container and to a blank for constructing the container so as to include a body portion having a top end closed by a folded top end closure of an improved construction.
  • Containers for beverages such as milk, cream, other dairy prodcuts, juices, and the like are conventionally constructed from thermoplastic coated paperboard.
  • One type of these containers includes a top end closure with a folded gable roof having a vertically projecting seal at the roof ridge for sealing the container and providing a pouring spout when the contents of the container are to be dispensed.
  • Stacking of such containers requires the use of separating trays intermediate different layers due to the vertically projecting seals of their top end closures. Also, storage space resulting from the configuration due to the empty space resulting from the configuration of the top end closure.
  • Such containers are shown by U.S. Patents 3,116,002 and 3,120,335.
  • Another type of the containers includes flat top end closures that are folded and have a flat seal projecting from a centerline of the closure with an outer end that is releasably secured to the rest of the closure generally adjacent one of its sides.
  • Various releasable securements are provided for releasing the flat seals to permit them to be opened and to thereby provide a pouring spout for dispensing beverages.
  • U.S. patents 3 869,078 and 3,892,347 disclose such flat top end closures.
  • a further type of container is disclosed by United States Published Patent application B 461,257, published January 13, 1976, now US patent 4,078 715, issued March 14, 1978, and includes a top end closure with an inclined seal that includes a harder score line on one side of the seal for facilitating folding of the seal from a vertical position to the inclined position.
  • United States Patents 4,012,997 and 4,093,115 disclose a container folding method and the container made by the method wherein certain roof panels of the top end closure are provided with double score lines extending alongside each other. Folding of a top seal of the end closure from a vertical position to a flat position requires the application of a downward force along the lower double score line on one side of the top seal and the application of another force to bend the top seal downwardly. Each additional application of force for folding the top end closure requires an additional folding tool on the folding mechanism and is thus accompanied by additional expenses.
  • Coated paperboard blanks for constructing each type of container described above are made on converting machines like those disclosed by U.S. Patents 2,682,208 and 3,731,600. After construction of the blanks to form the containers, application of heat or high frequency vibration applied by clamping pressure to interengaged portions of the blank provides sealing of the containers.
  • the captioned application has for an object a blank and the container obtained therefrom wherein the base angles 54a and 54b are equal and score line 65 is both low and wide whereas the score lines 63 and 67 at the ends of 65 are wide and inclined between the score line 65 and the respective gable panel apices 80 and 84. It is such an arrangement that enhances in the captioned application the folding into a slant or flat top.
  • An object of the present invention is to provide an improved coated paperboard container and a blank for constructing the container to include a top end closure comprised of a folded roof and a top seal for sealing the roof, and wherein the construction of the top end closure enhances foldability of the top seal from a vertical position.
  • the invention has therefore for an object a blank for constructing a container, the blank including body portion panels including front and back panels and a pair of side panels, one of which connects the front and back panels; bottom end closure panels connected to lower ends of the body portion panels; top end closure panel connected to upper ends of the body portion panels; said top end closure panels including front and back gable panels respectively connected to the upper ends of the front and back panels of the body portion and also including a pair of outer roof panels respectively connected to the upper ends of the side panels of the body portion, each of said gable panels including a pair of base angles and an upper apex; a pair a triangular inner roof panels located on opposite sides of each gable panel; the inner roof panels of each pair being of a different size than each other; top seal lips including a pair of inner seal lips respectively connected to the inner roof panels associated with each gable panel; a single score line connecting each inner seal lip and the associated inner roof panels; said top seal lips also including a pair of outer seal lips respectively connected to the outer roof panels;
  • the invention has also for an object a container obtained from a blank of the type mentioned hereinabove.
  • thermoplastic coated paperboard blank indicated by reference numeral 20 in Figure 1 is constructed according to the preferred embodiment of the invention to provide a carton or container 22 as shown in part in Figure 2.
  • a tubular body portion 24 of the container 22 has a top end closed by a top end closure 26 (Figure 2) of the invention and also has a bottom end closed by a bottom end closure 28 ( Figure 3).
  • the container blank 20 includes various scores or score lines along which the blank is folded to provide the container body portion 24, the slant top end closure 26, and the bottom end closure 28. Intermediate its upper and lower ends, the blank 20 includes a rectangular side panel 34 connected to another rectangular side panel 38. A rectangular back panel 40 is also connected to the side panel 38 and is secured to a seam flap 42 connected to the side panel 34 during construction of the container in order to form a tubular configuration. Securement of the seam flap 42 to the back panel 40 is provided by heat with a clamping pressure utilized to bond the thermoplastic coating of the container blank portions to each other.
  • the bottom end closure 28 is formed after the construction of the container blank into its tubular shape by folding the various triangular and rectangular panels 43, 44, 45, 46, 47, 48, 49 and 50 and then bonding these panels to each other.
  • a lower end 42a of seam flap 42 is secured to the panel 50 during the formation of the container blank into its tubular configuration. Inward folding of the traiangular panels 44 and 48 toward each other then pulls the triangular panels 43, 45 and 47, 49 connected thereto into an overlying relationship therewith as the rectangular panels 46 and 50 are concomitantly pulled inwardly to overlie the triangular panels in a generally planar relationship to form the end closure.
  • the end closure 28 as can be seen in Figure 3, is of the tucked in type with a portion 50a of panel 50 extending past a centerline B of the closure beneath a flap 46a of panel 46.
  • a high frequency vibration sealing apparatus such as the one disclosed by U.S. Patent 3,912,576 or a conventional heat sealing apparatus is utilized to seal the end closure whose various portion have one, two, three and four layers of the carton material respectively indicated by letters a, b, c and d.
  • the bottom end closure 28 may be of the "non-tuck in" type wherein the panel 50 terminates at the centerline B of this closure.
  • the top end closure 26 is formed from the container blank 20 shown in Figure 1 after construction thereof into the tubular configuration described above and after formation of the bottom end closure 28 and filling of the partially constructed container with its contents.
  • the roof 30 of the top end closure includes a rectangular outer roof panel 52 connected to the body portion side panel 34, a front triangular gable panel 54 connected to the body portion front panel 36, an outer roof panel 56 connected to the body portion side panel 38, and a back triangular gable panel 58 connected to the body portion back panel 40.
  • Triangular inner roof panels 53 and 55 respectively connect the front triangular gable panel 54 with pouring spout portions 52a and 56a of the outer roof panels.
  • triangular inner roof panels 57 and 59 of the constructed container respectively connect the back triangular gable panel 58 with the outer roof panels 56 and 52, the latter connection being made by an upper portion 42b of the seam flap which is bonded to panel 59.
  • the top seal 32 of top end closure 26 includes a rectangular outer seal lip 60 shown in Figure 1 as projecting from the outer roof panel 52 and connected thereto by a single score line 61.
  • a front inner seal lip 62 is connected by a single score line 63 to the inner roof panels 53 and 55 that are connected to the front triangular gable panel 54.
  • An outer seal lip 65 of the slant top seal projects from the outer roof panel 56 and is connected thereto by a single score line 65.
  • a back inner seal lip 66 is connected by a single score line 67 to the inner roof panels 57 and 59 that are connected to the back triangular gable,panel 58. Ends of the inner and outer seal lips are also connected to each other as shown.
  • Construction of the top end closure 26 begins by inward folding of the triangular gable panels 54 and 58 shown in Figure 1 toward each other with the container blank in its tubular configuration. This folding moves the inner roof panels 53, 55 and 57, 59 respectively connected to gable panels 54 and 58 in an overlying relationship thereto and pulls the outer roof panels 52 and 56 downwardly into their inclined orientation so as to cooperatively provide the roof ridge A ( Figure 2) from which the top seal 32 projects.
  • the bond along seal 32 is formed by application of either heat or high frequency vibration together with a clamping action that seals the contents of the container.
  • Each body not only seals the outer seal lips 60 and 64 to each other but also secures the outer seal lips to the folded inner seal lip 66 therebetween which is connected to the back triangular gable panel 58 shown in Figure 1 by the inner roof panels 57 and 59.
  • Outer seal lips 60 and 64 are also secured to each other by the bond but may be provented from forming a complete seal with the inner seal lip 62 associated with the front triangular gable panel 54 shown in Figure 1 by coating of an abhesive material applied to the inner seal lip 62 as shown at 70 and to the outer seal lips 60 and 64 as shown at 72 and 74.
  • This abhesive coating may be made of any suitable material, such as a silicone based material, and permits the sealed top end closure 26 to be opened from its closed condition of Figure 2 to an open condition where a conventional pouring spout (not shown) is provided to dispense the contents of the container.
  • a conventional pouring spout not shown
  • Outer seal lips 60 and 64 as seen in Figure 1 have respective straight outer terminal edges 60a and 64a.
  • Both outer roof panels 52 and 56 have the same height projecting from the associated body portion side panels 34 and 38 and the score lines that interconnect these panels are located slightly above the score lines that connect the triangular gable panels 54 and 58 with the front and back panels 36 and 40 to enhance foldability.
  • inner seal lips 62 and 66 include respective terminal edges 62a and 66a that may have somewhat blunt V shapes forming associated vertices 86 and 88. Opposite ends 90 and 92 of inner seal lip 62 are respectively connected to the outer seal lips 60 and 64 adjacent their coatings of abhesive material indicated by 72 and 74. Likewise, opposite ends 94 and 96 of inner seal lip 66 are respectively connected to outer seal lip 64 and outer seal lip 60, the latter connection being at the top seam flap end 42b. Intermediate its ends, inner seal lip 62 includes a score line 98 extending between its terminal edge vertex 86 and the adjacent front gable panel inclined edge intersection or apex 80.
  • inner seal lip 66 includes a score line 100 extending between its terminal edge vertex 88 and the adjacent back gable panel inclined edge intersection 84.
  • the inner seal lips fold along their respective score lines 98 and 100 so as to be located between the outer seal lips 60 and 64.
  • the single score line 65 that connects the outer roof panel 56 and the outer seal lip 64 is positioned at a dropped or lower elevation than the gable apices 80 and 84 and the single score line 61 that connects the outer roof panel 52 and the outer seai lip 60.
  • the combined height of outer roof panel 52 and outer seal lip 60 is the same as the combined height of outer roof panel 56 and outer seal lip 64.
  • the score line 65 that connects the outer roof panel 56 and the outer seal lip 64 is wider than the score line 61 that connects the outer roof panel 52 and the outer seal lip 60 in order to facilitate folding of the top seal after construction of the container as will be more fully hereinafter described.
  • Each of the front and back gable panels 54 and 58 of blank 20f shown in Figure 15 has its base angles 54a, 54b, and 58a, 58b equal to each other.
  • the intersection or apices 80 and 84 of the gable panels where the intersecting edges 78, 79 and 82, 83 meet are located centrally between the opposite ends 90, 92 and 94, 96 of the inner seal lips 62 and 66.
  • Each single score line 63 and 67 that connects the associated inner seal lips 62 and 66 with the adjacent inner roof panels 53, 55, or 57, 59 includes an inclined portion whose upper end extends to the adjacent gable apex 80 or 84 and whose lower end is connected to the adjacent end of the score line 65.
  • the inclined score line portions 63 and 67 like the score line 65 are wider than the other score lines so as to also facilitate the folding of the top seal from a vertical position as is more fully hereinafter described. It should also be noted that the terminal edges 62 and 66a of the inner seal lips 62 and 66 are of a symmetrical shape on opposite sides of their central vertices 86 and 88.
  • the constructed container 22 can be utilized with its top seal 32 extending vertically as shown in Figure 2. It is also possible to fold the top seal 32 to an inclined position by the application of a force F as shown in Figure 4 in order to provide a slant top seal. Folding of the top seal 32 to the slant top position shown in Figure 4 is facilitated by the wider and dropped score line 65 and the wider and inclined portions of score lines 63 and 67. In the slant top condition, the top seal 32 extends towards the smaller inner roof panels 55 and 57 which are partially defined by the inclined score line portions of score lines 63 and 67.
  • Containers 22 can be packed in layers on top of each other to minimize the storage and cargo space necessary. As the containers are stacked, their slant top seals 32 will deflect downwardly as shown in Figure 4 from their solid line position to the lower position shown by phantom line. As this deflection takes place, the slant top end closure 26 provides an iherent cushioning effect between the layers of containers to enhance the transportability of the containers without leakage occurring. Unlike folded gable roof closures with vertically projecting seals, this container does not require any shipping tray intermediate the different layers of stacked containers. No releasable securement of the slant top seal to the rest of the top end closure is necessary as with flat top end closures.
  • FIG. 5 The versatility of the container blank 20 shown in Figure 1 is further demonstrated by Figure 5 wherein the top seal 32 is shown folded over to a horizontal position in order to provide a flat top end closure.
  • a force F imparted by use of a suitable tool, bends the top seal 32 toward the side of the container on which the dropped and wide score line 65 is located.
  • the outer seal lip 64 is then releasably secured to the outer roof panel 56 by a suitable adhesive bond provided in any conventional manner in order to provide the flat top closure.
  • Opening of the constructed flat top end closure of the container 22 thus proceeds by first releasing the top seal 32 from the outer roof panel 56 and then moving the top seal to either the slant position of Figure 4 or the vertical position of Figure 2 followed by opening of the pouring spout in the usual manner.

Claims (6)

1. Zuschnitt zum Aufbau eines Behälters, bestehend aus:
Schaftflächen mit einer Frontfläche (36) und einer Rückfläche (40) und einem Paar von Seitenflächen (34, 38), von denen die Fläche (38) die Frontfläche (36) und die Rückfläche (40) miteinander verbindet;
Bodenflächen (44, 46, 48, 50), die mit den unteren Enden der Schaftflächen verbunden sind;
Verschlußflächen (52, 54, 56, 58), die mit dem oberen Ende der Schaftflächen verbunden sind und mit den oberen Enden der Front- und Rückflächen des Schaftes verbundene vordere Giebelfläche (54) und rückseitige Giebelfläche (58) aufweisen und ein Paar äußerer Verschlußflächen (52, 56) in Verbindung mit den oberen Enden der Seitenflächen des Schaftes aufweisen, wobei jede Giebelfläche ein Paar Basiswinkel (54a, 54b, 58a, 58b) und einen oberen Scheitelwinkel (80, 84) aufweist;
einem Paar dreieckiger innerer Verschlußflächen (53, 55; 57, 59) an eineander gegenüberliegenden Seiten jeder Giebelfläche, wobei die innere Verschlußfläche eines jeden Paares eine unterschiedliche Größe gegenüber der anderen aufweist;
ein Paar von mit den inneren Verschlußflächen verbundene innere Dichtungslippen (62, 66) in Verbindung mit jeder Giebelfläche;
eine einfache Falzlinie (63, 67), jede innere Dichtungslippe mit der inneren Verschlußfläche verbindet;
wobei die oberen Dichtungslippen ein Paar äußere Dichtungslippen (60, 64) in Verbindung mit den äußeren Verschlußflächen aufweisen und
eine einflache Falzlinie (61, 65), die jede äußere Dichtungslippe mit der zugehörigen äußeren Verschlußfläche verbindet; dadurch gekennzeichnet, daß die Basiswinkel (54a, 54b; 58a, 58b) eines jeden Paares gleich sind;
daß die die äußere Dichtungslippe (64) und die mit der einen Seitenfläche (38) des Schaftes verbundene äußere Verschlußfläche (56) verbindende einflache Falzlinie (65) unterhalb des Scheitelwinkels der Giebelflächen (54, 58) angeordnet und breiter als die andere einfache Falzlinie (61) ist, die die andere äußere Dichtungslippe (60) und die andere Verschlußfläche (52) miteinander verbindet;
daß jede der kleineren inneren Verschlußflächen (55, 57) an ein Ende der breiteren Falzlinie angrenzt;
daß jede der die inneren Dichtungslippen (62, 66) und die damit verbundenen inneren Verschlußflächen (55, 57) miteinander verbindenden einfachen Falzlinien eine breiteren Teil der Falzlinie (63, 67) aufweist, der zwischen der einen äußeren Dichtungslippe (64) und der äußeren Verschlußfläche (56) mit dem einen Ende der breiteren Falzlinie (65) verbunden ist;
unf daß jede der einfachen Falzlinien (63, 67), die die inneren Dichtungslippen (62, 66) und die zugehörigen inneren Verschlußflächen (55, 59) verbindet, eine geneigt verlaufenden Falzlinienteil aufweist, der breiter ist als der andere Teil und ein mit dem Scheitelwinkel (80, 84) der angrenzenden Giebelfläche verbundenes oberes Ende aufweist.
2. Zuschnitt nach Anspruch 1, dadurch gekennzeichnet, daß die äußeren Dichtungslippen (60, 64) Außenkanten (60a, 64a) aufweisen, deren Höhen so ausgewählt sind, daß sie bei der Ausbildung des oberen Endes im allgemeinen aneinander entlang verlaufen.
3. Aus einem Zuschnitt nach Anspruch 1 oder 2, bestehender Behälter, dadurch gekennzeichnet, daß beide Flächen (34, 38) in dem Paar von Seitenflächen die Frontfläche (36) und die Rückfläche (40) berbinden, wobei der obere Verschluß obere Verschlußflächen (52, 54, 56, 58 aufweist, die mit den oberen Enden der Schaftflächen unter Bildung eines Faltverschlusses verbunden sind, wobei weiter des Paar dreieckiger innerer Verschlußflächen (53, 55; 57, 59) an jede Giebelfläche (54, 58) angrenzt und wobei die inneren Verschlußflächen (53, 59) an der Seite des oberen Verschlusses kleiner sind als die inneren Verschlußflächen (53, 59) an dem anderen Seite.
4. Behälter nach Anspruch 3, dadurch gekennzeichnet, daß jede der breiteren Falzlinienteile (63, 67) geneigt verläuft und ein oberes Ende aufweist, welches mit den Scheitelwinkel (80, 84) der benachbarten Giebelfläche verbunden ist.
5. Behälter nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die äußeren Dichtungslippen (60, 64) Außenkanten (60a, 64a) aufweisen, die im allgemeinen längs nebeneinander verlaufen.
EP79901498A 1978-11-03 1979-10-16 Zuschnitt zum Aufbau eines Behälters Expired EP0020567B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/957,393 US4211357A (en) 1976-12-29 1978-11-03 Container and blank for constructing same
US957393 1978-11-03

Publications (3)

Publication Number Publication Date
EP0020567A1 EP0020567A1 (de) 1981-01-07
EP0020567A4 EP0020567A4 (de) 1981-02-06
EP0020567B1 true EP0020567B1 (de) 1984-12-12

Family

ID=25499510

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79901498A Expired EP0020567B1 (de) 1978-11-03 1979-10-16 Zuschnitt zum Aufbau eines Behälters

Country Status (12)

Country Link
EP (1) EP0020567B1 (de)
JP (2) JPS55500983A (de)
AU (1) AU531307B2 (de)
BE (1) BE879768A (de)
CA (1) CA1102763A (de)
DE (1) DE2967327D1 (de)
FI (1) FI69608C (de)
IT (1) IT1119891B (de)
MX (1) MX151074A (de)
NO (1) NO152206C (de)
WO (1) WO1980000952A1 (de)
ZA (1) ZA795884B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0705611A2 (de) * 1994-09-07 1996-04-10 David S. Utterberg Trennbares Hämodialysesystem

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125274A (en) * 1964-03-17 Blank for double walled carton
US3270940A (en) * 1961-07-07 1966-09-06 Ex Cell O Corp Container with extensible pouring spout
US3892347A (en) * 1971-10-07 1975-07-01 Harry B Egleston Flat end closure container with reclosable pour spout
SE390944B (sv) * 1973-04-24 1977-01-31 Ziristor Ab Forpackningsbehallare
US3869078A (en) * 1973-12-18 1975-03-04 Ex Cell O Corp Liquid proof flat end container with reclosable pour spout
CA1036982A (en) * 1974-07-15 1978-08-22 Nimco Corporation Liquid-tight flat top container
US4085885A (en) * 1976-07-23 1978-04-25 Ex-Cell-O Corporation Liquid proof flat top container with thumb notch release means
GR64572B (en) * 1976-12-29 1980-04-15 Ex Cell O Corp Slant top container

Also Published As

Publication number Publication date
IT7950685A0 (it) 1979-10-29
CA1102763A (en) 1981-06-09
NO152206B (no) 1985-05-13
IT1119891B (it) 1986-03-10
JPS5983721U (ja) 1984-06-06
ZA795884B (en) 1980-11-26
AU5235479A (en) 1980-07-03
EP0020567A1 (de) 1981-01-07
EP0020567A4 (de) 1981-02-06
BE879768A (fr) 1980-02-15
FI69608B (fi) 1985-11-29
WO1980000952A1 (en) 1980-05-15
FI69608C (fi) 1986-03-10
DE2967327D1 (en) 1985-01-24
AU531307B2 (en) 1983-08-18
NO152206C (no) 1985-08-21
FI793450A (fi) 1980-05-04
JPS55500983A (de) 1980-11-20
NO793525L (no) 1980-06-23
MX151074A (es) 1984-09-24
JPS6112327Y2 (de) 1986-04-17

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