JPS6031710B2 - Devices for the storage and removal of liquid or pasty substances - Google Patents
Devices for the storage and removal of liquid or pasty substancesInfo
- Publication number
- JPS6031710B2 JPS6031710B2 JP52019361A JP1936177A JPS6031710B2 JP S6031710 B2 JPS6031710 B2 JP S6031710B2 JP 52019361 A JP52019361 A JP 52019361A JP 1936177 A JP1936177 A JP 1936177A JP S6031710 B2 JPS6031710 B2 JP S6031710B2
- Authority
- JP
- Japan
- Prior art keywords
- outer container
- container
- edge
- inner container
- packing ring
- 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
Links
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
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/38—Details of the container body
-
- 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
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/60—Contents and propellant separated
- B65D83/62—Contents and propellant separated by membrane, bag, or the like
Description
【発明の詳細な説明】
本発明は圧力に耐える外側容器及び上緑が外側容器の誉
曲された上端上に載っている可榛性内側容器と、外側容
器の上部開口に挿入し、その底に続く外縁部を内側容器
及び外側容器の上端にパッキングリングと共に巻込んで
結合されている、底に取出弁の取付けられた上部板と、
圧力媒体の充填のための外側容器の底に閉鎖可能の開□
とを備えた、圧力をかけた状態で液体及びペースト状物
質を収容し及び取出しするための装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention comprises a pressure resistant outer container and a flexible inner container with a top cover resting on the curved top end of the outer container, and a flexible inner container which is inserted into the top opening of the outer container and whose bottom an upper plate with a take-out valve attached to the bottom, the outer edge of which is connected to the upper ends of the inner container and the outer container with a packing ring;
Closable opening at the bottom of the outer container for filling with pressure medium □
Apparatus for containing and removing liquids and pasty substances under pressure, comprising:
この装置の内側容器中に使用物質が充填される。内側容
器と外側容器との間のりング状空間は、作動ガスを充填
される。このような装置の構造で解決されるべき課題は
、外側容器に充填された圧力ガス並びに内側容器に充填
された物質の漏洩を回避することにある。二室容器又は
二室圧力容器とも称される、この装置の数多くの形が公
知である。The inner container of this device is filled with the substance to be used. The ring-shaped space between the inner container and the outer container is filled with working gas. The problem to be solved with the construction of such a device is to avoid leakage of the pressurized gas filled in the outer container as well as the substance filled in the inner container. Many forms of this device, also referred to as two-chamber vessels or two-chamber pressure vessels, are known.
これらは内側容器と外側容器及び容器蓋又は外側容器の
上部関口に装入され、取出弁を備えた上部板の底との間
の固定及び保持不完全は安全に回避されることにある。
この課題の解決は本発明によれば内側容器１４の上端は
外側容器１２の上端１８の中央まで蓮し、そこにエッジ
３６を載せており、このエッジ３６は前記巻込部の内部
に位置し、かつ外側容器１２の外面までは達しておらず
、このエッジ３６に高い圧着力が作用して内側容器１４
の内室と内側−及び外側容器の間のガス室も繁塞されお
り、外側容器１２の上端の延長部２０が内方へ曲げられ
、そのエッジ２２が上部板の底２６及び側面２４に内側
容器１４を押し当てており、上部板の上端２８と外側容
器の上端１８との間に前記エッジ３６を敬函んでパッキ
ングリング３０が介在し、並びに、エッジ２２を取囲ん
でパッキングリング３８が内側容器と外側容器との間に
介在していることによって解決される。These are inserted into the inner container and the outer container and into the container lid or the upper opening of the outer container, so that incomplete fixing and retention between the inner container and the bottom of the upper plate with the take-off valve is safely avoided.
According to the present invention, the upper end of the inner container 14 extends to the center of the upper end 18 of the outer container 12, and an edge 36 is placed thereon, and this edge 36 is located inside the winding portion. , and does not reach the outer surface of the outer container 12, and a high pressure force is applied to this edge 36, so that the inner container 14
The gas chamber between the inner chamber and the inner and outer vessels is also obstructed so that the upper extension 20 of the outer vessel 12 is bent inwardly and its edges 22 are attached to the bottom 26 and sides 24 of the upper plate. A packing ring 30 is interposed between the upper end 28 of the upper plate and the upper end 18 of the outer container by enclosing the edge 36, and a packing ring 38 surrounds the edge 22 and is interposed between the upper end 28 of the upper plate and the upper end 18 of the outer container. This problem is solved by being interposed between the container and the outer container.
公知の実施形では、内側容器の上端は外側容器と容器蓋
との間で一緒に巻込まれる。In known embodiments, the upper end of the inner container is rolled together between the outer container and the container lid.
このことは良好な固定とシールを保証する。しかし空の
場合の内側容器の折畳み従って折畳みによる空白化は不
適当である。多くの場合内側容器は合成樹脂から成る。
従って容器に充填され、金属を侵す物質は損傷作用を生
じさせない。しかし物質は容器蓋と接触するようになる
。従って金属を侵す多くの物質は充填されることはでき
ない。他の実施形態は、内側容器が外側容器の底に巻込
まれたものである。This ensures good fixation and sealing. However, folding of the inner container when empty and thus emptying by folding is unsuitable. The inner container is often made of synthetic resin.
Substances which are filled into the container and which attack the metal therefore have no damaging effect. However, the substance comes into contact with the container lid. Therefore, many substances that attack metals cannot be filled. Another embodiment is one in which the inner container is wrapped around the bottom of the outer container.
物質の圧縮のための燃料ガスは内側容器中に入れられる
。物質自体は、内側容器と外側容器との間のりング状室
に入れられる。それによって物質は外側容器の金属壁と
接触する。この実施形では金属を侵す物質は入れられな
い。公知の第三の実施形では、内側容器は外側容器の上
部巻込縁に懸吊されている。Fuel gas for compression of the substance is placed in the inner container. The substance itself is placed in a ring-shaped chamber between the inner and outer containers. The substance thereby comes into contact with the metal wall of the outer container. This embodiment does not allow for the introduction of substances that attack metals. In a third known embodiment, the inner container is suspended from the upper rolled edge of the outer container.
取出弁は上部板の底に取付けられている。緑は鍔状にさ
れ、それによって外側容器と外側容器とを結合する。こ
の緑は緊密かつ剛固な結合を形成する。内側容器に充填
される物質は、外側容器の金属と接触することにはなら
ない。この公知の実施形態では圧力容器の上端は外方へ
轡曲されている。弁の底の袋入又は付形の際内側容器は
外側容器の円錐状に外方へ向いた細長部に押しつけられ
る。この押圧は轡曲緑の直〈下方で行なわれる。内側容
器及び外側容器は細長部に沿って圧着される。それによ
って面シールが行なわれる。このことはシールの際常に
不完全な状態を生ずる。内側容器のために合成樹脂を使
用する場合、圧着個所の内方にコールドフロー危険が存
在する。それによって弁は弛められガスが外側容器から
漏洩されうる。合成樹脂のコールドフローによって、外
側容器に高圧がかかった際弁底のフランジ緑は拡げられ
、弁は保持を失う。本発明を図示の実施例に基づいて説
明する。The take-off valve is attached to the bottom of the top plate. The green is brim-shaped, thereby joining the outer container to the outer container. This green forms a tight and rigid bond. The substance filled into the inner container will not come into contact with the metal of the outer container. In this known embodiment, the upper end of the pressure vessel is bent outwards. During bagging or shaping of the bottom of the valve, the inner container is pressed against the conically outwardly directed elongation of the outer container. This pressing is done directly below the curved green. The inner container and the outer container are crimped along the elongated section. Thereby, face sealing is performed. This always results in imperfections during sealing. If synthetic resins are used for the inner container, there is a risk of cold flow inside the crimping points. The valve is thereby relaxed and gas can leak from the outer container. Due to the cold flow of the synthetic resin, when high pressure is applied to the outer container, the green flange at the bottom of the valve expands and the valve loses its retention. The present invention will be explained based on illustrated embodiments.
金属製外側容器１２の中に合成樹脂から成る内側容器１
４がある。作動ガスのための充填弁１６は外側容器１２
の底にある。外側容器１２は第３図に示す実施例ではそ
の上端１８を内方へ轡曲させている。上端はエッジ２２
を備えた轡曲された側壁２０を形成する。取出弁３２は
上部板の底２６に圧入されている。上部板の底２６は側
壁に沿って上方へ曲げられ、上端２８の点で鍔を形成し
ている。拡張工具によって底は側壁２４の下方範囲にお
いてアーチ部３４を形成しつつ外方へ拡張されている。
パッキングリング３０は、内側容器１４のエッジ３６及
び外側容器１２の上端１８上に位置する。アーチ部３４
は、内側容器１４を外側容器１２の側壁２０１こしつか
りと押しつける。Inner container 1 made of synthetic resin inside metal outer container 12
There are 4. A filling valve 16 for working gas is connected to the outer container 12
At the bottom of the. In the embodiment shown in FIG. 3, the outer container 12 has its upper end 18 bent inwardly. The top edge is edge 22
Forming a curved side wall 20 with. The take-off valve 32 is press-fitted into the bottom 26 of the top plate. The bottom 26 of the top plate is bent upwardly along the side walls to form a collar at a point at the top end 28. The bottom is expanded outwardly by the expansion tool, forming an arch 34 in the lower region of the side wall 24.
Packing ring 30 is located on edge 36 of inner container 14 and upper end 18 of outer container 12. Arch part 34
The inner container 14 is firmly pressed against the side wall 201 of the outer container 12.
側壁２０のエッジ２２は内側容器１４の合成樹脂に押込
まれる。例えばラテックスから成るパッキングリング３
８は内側容器１４と外側容器１２との間でエッジ２２の
下方にある。内側容器１４と外側容器１２との間のガス
室中の圧力によって内側容器１４又は外側容器１２が側
壁２０の両綾に押し付けられる。それによってガス室は
一層繁塞される。使用物質を内包した内側容器１４の緊
塞は外側容器１２の側壁２０と上部板の上方へ曲げられ
た側壁２４との間の内側容器１４の上端の緒付けによっ
て行なわれる。それ以上の緊塞は内側容器１４のエッジ
３６に沿って行なわれる。エッジ３６にパッキングリン
グ３０が高い圧力で押し付けられる。冒頭に説明したよ
うにパッキングリング３０はその原体積の３０％までに
圧縮される。このことはエッジ３６に沿う高度の繁塞力
に連なる。種々のシール緑は本発明の枠内において個々
に図示した以外の状態でも作用することができる。The edge 22 of the side wall 20 is pressed into the synthetic resin of the inner container 14. Packing ring 3 made of latex, for example
8 is below the edge 22 between the inner container 14 and the outer container 12. The pressure in the gas chamber between the inner container 14 and the outer container 12 forces the inner container 14 or the outer container 12 against both sides of the side wall 20 . As a result, the gas chamber becomes even more clogged. Tightening of the inner container 14 containing the substance to be used takes place by tying the upper end of the inner container 14 between the side wall 20 of the outer container 12 and the upwardly bent side wall 24 of the top plate. Further closure is performed along the edge 36 of the inner container 14. Packing ring 30 is pressed against edge 36 with high pressure. As explained at the outset, the packing ring 30 is compressed to 30% of its original volume. This translates into high blocking forces along edge 36. The various seal greens can also function within the scope of the invention in situations other than those individually illustrated.
第１図は、外側容器と弁底を断面図で示す本発明の実施
形の側面図、第２図は第１図の０ーロ線に沿う断面図、
第３図は第１図で一点鎖線で示す円の部分の拡大図を示
す。
図中符号、１２・・・・・・外側容器、１４・・・・・
・内側容器、１８・・・・・・外側容器の上端、２２・
・・・・・エッジ、２４・・・・・・上部板の側面、２
６・・・・・・上部板の底、３０……パッキングリング
、３６……エッジ、３８……パッキングリング。
ＦＩＧ．ｌ
ＦＩＧ．２
ＦＩＧ．３FIG. 1 is a side view of an embodiment of the present invention showing the outer container and the valve bottom in cross-section; FIG. 2 is a cross-sectional view taken along the 0-Ro line in FIG. 1;
FIG. 3 shows an enlarged view of the circle indicated by the dashed line in FIG. 1. Code in the figure: 12... Outer container, 14...
・Inner container, 18... Upper end of outer container, 22.
...Edge, 24...Side surface of upper plate, 2
6...bottom of upper plate, 30...packing ring, 36...edge, 38...packing ring. FIG. l FIG. 2 FIG. 3
Claims (1)
れた上端上に載つている可撓性内側容器と、外側容器の
上部開口に挿入し、その底に続く外縁部を内側容器及び
外側容器の上端にパツキングリングと一緒に巻込んで結
合されている、底に取出弁の取付けられた上部板と、圧
力媒体の充填のための外側容器の底に閉鎖可能の開口と
を備えた、圧力をかけた状態で液体及びペースト状物質
を収容し及び取出しするための装置において、内側容器
１４の上端は外側容器１２の上端１８の中央まで達し、
そこにエツジ３６を載せており、このエツジ３６は前記
巻込部の内部に位置し、かつ外側容器１２の外面までは
達しておらず、エツジ３６に高い圧着力が作用して内側
容器１４の内室と内側−及び外側容器の間のガス室も緊
塞されており、外側容器１２の上端の延長部２０内が内
方へ曲げられ、そのエツジ２２が上部板の底２６及び側
面２４に内側容器１４を押し当てており、上部板の上端
２８と外側容器の上端１８との間に前記エツジ３６を取
囲んでパツキングリング３０が介在し、並びに、エツジ
２２を取囲んでパツキングリング３８が内側容器と外側
容器との間に介在していることを特徴とする、液体又は
ペースト状物質の収容及び取出しのための装置。1. A pressure-resistant outer container and a flexible inner container whose upper end rests on the curved upper end of the outer container, and a flexible inner container whose upper end rests on the curved upper end of the outer container. A pressure relief device with a top plate fitted with a take-off valve at the bottom, which is rolled up and connected with a packing ring at the top end, and a closable opening at the bottom of the outer container for filling with pressure medium. In an apparatus for containing and dispensing liquids and pasty substances in a suspended state, the upper end of the inner container 14 extends to the middle of the upper end 18 of the outer container 12;
An edge 36 is placed thereon, and this edge 36 is located inside the rolled-up portion and does not reach the outer surface of the outer container 12, and a high pressure force is applied to the edge 36, so that the inner container 14 is closed. The gas chamber between the inner chamber and the inner and outer containers is also sealed and the upper end extension 20 of the outer container 12 is bent inwardly so that its edges 22 meet the bottom 26 and sides 24 of the top plate. A packing ring 30 is interposed between the upper end 28 of the upper plate and the upper end 18 of the outer container, surrounding the edge 36, and a packing ring 38 is provided surrounding the edge 22. Device for the storage and removal of liquid or pasty substances, characterized in that it is interposed between an inner container and an outer container.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7602685A SE404346B (en) | 1976-02-27 | 1976-02-27 | KERL FOR RECEPTION AND DELIVERY OF LIQUID AND PASTA-MASSES UNDER PRESSURE |
| SE7602685-5 | 1976-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52146383A JPS52146383A (en) | 1977-12-06 |
| JPS6031710B2 true JPS6031710B2 (en) | 1985-07-24 |
Family
ID=20327170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52019361A Expired JPS6031710B2 (en) | 1976-02-27 | 1977-02-25 | Devices for the storage and removal of liquid or pasty substances |
Country Status (16)
| Country | Link |
|---|---|
| JP (1) | JPS6031710B2 (en) |
| AR (2) | AR214517A1 (en) |
| AU (1) | AU509237B2 (en) |
| BE (1) | BE851864A (en) |
| CA (1) | CA1056780A (en) |
| CH (1) | CH616633A5 (en) |
| DE (2) | DE2705549C2 (en) |
| DK (1) | DK148474C (en) |
| ES (1) | ES456338A1 (en) |
| FI (1) | FI58895C (en) |
| FR (1) | FR2342222A1 (en) |
| GB (1) | GB1579350A (en) |
| IE (1) | IE44623B1 (en) |
| NL (1) | NL183451C (en) |
| SE (1) | SE404346B (en) |
| ZA (1) | ZA771141B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5548070A (en) * | 1978-09-29 | 1980-04-05 | Continental Group | Aerosol vessel |
| US4293353A (en) * | 1978-11-03 | 1981-10-06 | The Continental Group, Inc. | Sealing-attaching system for bag type aerosol containers |
| JPS55104684U (en) * | 1979-01-12 | 1980-07-22 | ||
| FR2450758B1 (en) * | 1979-03-08 | 1986-01-17 | Valois Sa | VALVE MOUNTING DEVICE IN AN AEROSOL CONTAINER |
| DE2912670A1 (en) * | 1979-03-30 | 1980-10-09 | Lechner Gmbh | TWO-CHAMBER PRESSURE CAN FOR DISPENSING A FILLING MATERIAL |
| JPH0232301Y2 (en) * | 1981-05-20 | 1990-09-03 | ||
| JPS589160U (en) * | 1981-07-09 | 1983-01-21 | 大阪エヤゾ−ル工業株式会社 | Accumulated fire extinguisher |
| JPS58108857U (en) * | 1982-01-16 | 1983-07-25 | 大阪エヤゾ−ル工業株式会社 | Halon fire extinguishing agent storage container |
| DE3802314C1 (en) * | 1988-01-27 | 1989-10-26 | Stoffel, Gerd, 7750 Konstanz, De | |
| DE3915765C2 (en) * | 1988-01-27 | 1998-07-30 | Gerd Stoffel | Process for producing a two-chamber pressure pack |
| DE3807156A1 (en) * | 1988-03-04 | 1989-09-14 | Perfect Ventil Gmbh | AEROSOL CONTAINER |
| US5123560A (en) * | 1989-01-31 | 1992-06-23 | Alusuisse-Lonza Services Ltd. | Two-chamber dispenser for a gas-pressurized or non-pressurized package |
| JPH0717404Y2 (en) * | 1989-04-07 | 1995-04-26 | ライオン株式会社 | Aerosol container |
| FI910201A (en) * | 1991-01-15 | 1992-07-16 | Pentti Turunen | SYSTEM FOER ANVAENDNING AV AEROSOLER OCH AEROSOLFOERPACKNINGAR. |
| WO1993011059A1 (en) * | 1991-11-27 | 1993-06-10 | James Owen Camm | Dispenser |
| JP5190163B2 (en) * | 2001-03-07 | 2013-04-24 | 株式会社ダイゾー | Double aerosol product manufacturing method and double aerosol product manufactured by the manufacturing method |
| JP5064897B2 (en) * | 2007-06-11 | 2012-10-31 | 日鐵ドラム株式会社 | Method for producing a metal container with excellent airtightness |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4916575U (en) * | 1972-05-19 | 1974-02-12 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3417117A (en) * | 1964-10-26 | 1968-12-17 | M & T Chemicals Inc | Organotin carbonates, their thio-analogs and the preparation thereof |
| US3450305A (en) * | 1966-10-12 | 1969-06-17 | Continental Can Co | Venting means for containers |
| US3896602A (en) * | 1971-09-15 | 1975-07-29 | Tor H Petterson | Method of manufacturing of a barrier package |
| US3828977A (en) * | 1972-06-14 | 1974-08-13 | Continental Can Co | Compartment bag assembly for dispensing containers |
| US3850339A (en) * | 1973-05-07 | 1974-11-26 | American Can Co | Triple score pressure relief system for an aerosol container |
| DE2413859C3 (en) * | 1974-03-22 | 1979-10-04 | Vereinigte Deutsche Metallwerke Ag, 6000 Frankfurt | Seamless container |
-
1976
- 1976-02-27 SE SE7602685A patent/SE404346B/en not_active IP Right Cessation
-
1977
- 1977-02-10 DE DE2705549A patent/DE2705549C2/en not_active Expired
- 1977-02-10 DE DE7703927U patent/DE7703927U1/en not_active Expired
- 1977-02-23 AR AR266652A patent/AR214517A1/en active
- 1977-02-24 FR FR7705375A patent/FR2342222A1/en active Granted
- 1977-02-24 DK DK79977A patent/DK148474C/en not_active IP Right Cessation
- 1977-02-25 CA CA272,742A patent/CA1056780A/en not_active Expired
- 1977-02-25 CH CH243377A patent/CH616633A5/en not_active IP Right Cessation
- 1977-02-25 GB GB8038/77A patent/GB1579350A/en not_active Expired
- 1977-02-25 NL NLAANVRAGE7702029,A patent/NL183451C/en not_active IP Right Cessation
- 1977-02-25 IE IE417/77A patent/IE44623B1/en not_active IP Right Cessation
- 1977-02-25 JP JP52019361A patent/JPS6031710B2/en not_active Expired
- 1977-02-25 ZA ZA00771141A patent/ZA771141B/en unknown
- 1977-02-25 BE BE175294A patent/BE851864A/en not_active IP Right Cessation
- 1977-02-25 FI FI770627A patent/FI58895C/en not_active IP Right Cessation
- 1977-02-26 ES ES456338A patent/ES456338A1/en not_active Expired
- 1977-02-28 AU AU22778/77A patent/AU509237B2/en not_active Expired
- 1977-10-25 AR AR269711A patent/AR218641A1/en active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4916575U (en) * | 1972-05-19 | 1974-02-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE7703927U1 (en) | 1977-06-08 |
| FR2342222B1 (en) | 1981-06-12 |
| SE7602685L (en) | 1977-08-28 |
| DK148474C (en) | 1985-12-16 |
| AU509237B2 (en) | 1980-05-01 |
| NL183451B (en) | 1988-06-01 |
| ZA771141B (en) | 1978-01-25 |
| IE44623B1 (en) | 1982-01-27 |
| AR214517A1 (en) | 1979-06-29 |
| DE2705549A1 (en) | 1977-09-01 |
| FI770627A (en) | 1977-08-28 |
| JPS52146383A (en) | 1977-12-06 |
| DK79977A (en) | 1977-08-28 |
| BE851864A (en) | 1977-06-16 |
| AU2277877A (en) | 1978-09-07 |
| NL7702029A (en) | 1977-08-30 |
| FI58895B (en) | 1981-01-30 |
| FI58895C (en) | 1981-05-11 |
| NL183451C (en) | 1988-11-01 |
| AR218641A1 (en) | 1980-06-30 |
| CH616633A5 (en) | 1980-04-15 |
| ES456338A1 (en) | 1978-01-16 |
| DK148474B (en) | 1985-07-15 |
| DE2705549C2 (en) | 1984-09-06 |
| CA1056780A (en) | 1979-06-19 |
| FR2342222A1 (en) | 1977-09-23 |
| SE404346B (en) | 1978-10-02 |
| GB1579350A (en) | 1980-11-19 |
| IE44623L (en) | 1977-08-27 |
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