JPS585649B2 - A device for cutting the bodies of killed food animals - Google Patents
A device for cutting the bodies of killed food animalsInfo
- Publication number
- JPS585649B2 JPS585649B2 JP55106491A JP10649180A JPS585649B2 JP S585649 B2 JPS585649 B2 JP S585649B2 JP 55106491 A JP55106491 A JP 55106491A JP 10649180 A JP10649180 A JP 10649180A JP S585649 B2 JPS585649 B2 JP S585649B2
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- blade
- killed
- guide device
- spine
- 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
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22B—SLAUGHTERING
- A22B5/00—Accessories for use during or after slaughtering
- A22B5/20—Splitting instruments
- A22B5/203—Meat or bone saws for splitting carcasses
- A22B5/207—Reciprocating, percussion or hydraulic cutting means
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22B—SLAUGHTERING
- A22B5/00—Accessories for use during or after slaughtering
- A22B5/20—Splitting instruments
- A22B5/203—Meat or bone saws for splitting carcasses
- A22B5/206—Disc or circular saws
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Surgical Instruments (AREA)
- Processing Of Meat And Fish (AREA)
- Nonmetal Cutting Devices (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Crushing And Pulverization Processes (AREA)
- Knives (AREA)
Description
【発明の詳細な説明】
この発明は食料用の殺した動物の体を長手方向に切断す
る装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for longitudinally cutting the bodies of killed animals for food.
特に、この発明は豚を縦に裂く装置に関する。In particular, the invention relates to a device for longitudinally splitting pigs.
殺した食用動物の体を縦に裂く場合、殺した食用動物の
体は後足をフックに掛けて垂直につり下げられる。When the body of a killed food animal is split lengthwise, the body of the killed food animal is hung vertically by its hind legs on a hook.
この状態において、殺した食用動物の体は端部から縦に
裂き始めて下方へ切断することによって脊椎の全長に沿
って縦に裂かれる。In this condition, the body of the killed food animal is split lengthwise along the entire length of the vertebrae by starting the split lengthwise at the end and cutting downward.
この縦に裂く作業には切断おのやのこぎりが用いられ得
る。A cutting ax or a saw may be used for this longitudinal splitting operation.
おのを用いて手で行なう縦に裂く作業は時間がかかり骨
の折れる作業であるが、丸のこや帯のこのようなのこぎ
りを用いることによって時間がかからずしかも骨の折れ
ない縦裂き作業を行なうことができる。The process of vertically splitting by hand using an ax is time-consuming and laborious work, but by using a circular saw or a band saw like this, vertically splitting can be done quickly and painlessly. able to perform work.
しかしながら、切断用のこぎりやおのを用いると、肉中
に有害な破片が入り込み、汚染させることになる。However, the use of cutting saws and axes introduces harmful debris into the meat, causing contamination.
さらにハンマーで作動する刃物やおのを使用することも
提案されてきた。It has also been proposed to use hammer-actuated knives and axes.
しかしながら、このような型式の切断装置では切断部が
きれいでなく、また頭蓋骨を縦に裂くのには適しない。However, these types of cutting devices do not produce clean cuts and are not suitable for longitudinally splitting the skull.
さらに、殺した食用動物の体はこの型式の切断装置を使
用できるように骨盤を通って縦に裂かれる必要がある。Furthermore, the body of a killed food animal must be split lengthwise through the pelvis to be able to use this type of cutting device.
最も普通には腫物等が存在するか否かを検査するため脊
椎、脊髄および脳髄を検査できるようにするため蓄殺の
後直ちに縦に裂かれる。Most commonly, the animal is split lengthwise immediately after slaughter to allow examination of the spine, spinal cord, and brain marrow to determine whether tumors are present.
全体を適切に容易に検査できるようにするため、切断部
はできるだけきれいでしかも一様である必要がある。The cuts should be as clean and uniform as possible to allow proper and easy inspection of the whole.
骨等の破片、脊髄等による隣接部位の汚染を避けること
は必須要件である。It is essential to avoid contamination of adjacent areas with bone fragments, spinal cord, etc.
従って、この発明の主目的は、頭蓋骨を含む殺した食用
動物の体全体を脊椎の中央を通って切断する切断装置を
提供することにある。Accordingly, the main object of this invention is to provide a cutting device for cutting through the center of the vertebrae through the entire body of a killed food animal, including the skull.
この発明の第２の目的は、破片や他の形態の汚染のない
一様できれいな切断を行なうことにある。A second object of the invention is to provide uniform, clean cuts free of debris and other forms of contamination.
この発明の別の目的は、殺した食用動物を手で縦に裂く
際の骨の折れる仕事を除去する切断装置を提供すること
にある。Another object of the invention is to provide a cutting device that eliminates the laborious task of manually tearing a killed food animal lengthwise.
この発明によれば、殺した食用動物の体は腹側から導入
されるコンパクトな作動刃によって脊椎に沿って縦に二
つに切断され、刃は二つの異なった仕方、すなわち、（
イ）脊椎の両側において死体を支持する腹側の案内装置
と脊椎に沿った背側の案内装置とによってまたは（ロ）
脊髄中に導入されることになる針型案内装置によって案
内される。According to this invention, the body of a killed food animal is cut into two longitudinally along the vertebrae by a compact actuated blade introduced from the ventral side, the blade being cut in two different ways, viz.
(b) by means of a ventral guiding device supporting the corpse on both sides of the spine and a dorsal guiding device along the spine; or (b)
It is guided by a needle-type guiding device that will be introduced into the spinal cord.
縦に裂く作業の最初の段階では、裂け目が丁度骨盤を通
過するまで（イ）の方法が用いられ、その後肩部まで切
断するのに（ロ）の方法が用いられる。In the first stage of longitudinal tearing, method (a) is used until the tear just passes through the pelvis, and then method (b) is used to cut through the shoulders.
肩部から頭蓋骨を切断する際には（イ）の方法が用いら
れる。Method (a) is used when cutting the skull from the shoulder.
脊椎が生れつき変形して（ロ）の方法を用いることがで
きない場合には、殺した食用動物の体全体は（イ）の方
法を用いて切断される。If the spine is deformed from birth and method (b) cannot be used, the entire body of the killed food animal is cut using method (b).
殺した食用動物の体の腹側に用いられる案内装置は、空
気シリンダによって脊椎に対して横方向に可動に配置さ
れる。A guide device used on the ventral side of the body of a killed food animal is arranged movably transversely to the vertebrae by means of a pneumatic cylinder.
空気シリンダ内の空気圧は調整され、それにより空気シ
リンダはばね装置として作用する。The air pressure within the air cylinder is regulated so that the air cylinder acts as a spring device.
殺した食用動物の体の背側に沿って用いられる案内交置
は、脊椎全体に沿って正確に案内するようにばね負荷さ
れ得る少なくとも一つの摺動レールまたは一つ以上のロ
ーラから成る。The guiding arrangement used along the dorsal side of the body of a killed food animal consists of at least one sliding rail or one or more rollers that can be spring-loaded for precise guidance along the entire spine.
針型案内装置は二又フォークから成り、そして作動刃の
各側にそれぞれのまたが配列される。The needle guide consists of a forked fork, with respective forks arranged on each side of the working blade.
従って、刃は二つのまた間で作動する。The blade thus operates between two paws.
殺した食用動物の体の骨盤を切断する際には、針型案内
装置は空気シリンダによって脊髄内へ強制される。When cutting the pelvis of a killed food animal, the needle guide device is forced into the spinal cord by an air cylinder.
骨盤と肩部分との間の領域では、脊椎には急な屈曲部が
ないので針型案内装置は容易に脊椎に追従し得る。In the area between the pelvis and the shoulder area, the needle guide can easily follow the spine since there are no sharp bends in the spine.
肩部においては脊椎は針型案内装置の動きを妨げる屈曲
部をもっている。At the shoulder, the vertebrae have bends that impede movement of the needle guide.
従って、この針型案内装置は引込められ、代りに（イ）
の方法にによる案内装置が用いられる。Therefore, this needle guide device is retracted and instead (a)
A guiding device according to the method described above is used.
刃は、切断装置の作動時に殺した食用動物の体の背側に
配置される打込み装置によって作動される。The blade is actuated by a driving device which is placed on the dorsal side of the body of the killed food animal when the cutting device is actuated.
打込み装置の特殊な配置によって、打込み装置と刃の当
接点との間隔は非常に短かくできる。Due to the special arrangement of the driving device, the distance between the driving device and the contact point of the blade can be very short.
打込み装置の速度および空気シリンダの作動はハンドル
に設けた弁によって制御される。The speed of the driving device and the operation of the air cylinder are controlled by a valve in the handle.
殺した食用動物の体はそれに対する下方運動によって切
断され、切断装置は支持装置に可動につり下げられてい
る。The body of the killed food animal is cut by a downward movement relative thereto, the cutting device being movably suspended on a support device.
行程長さ１０ｍｍで毎分約３５００行程を用いると、毎
時約２００〜２２５頭の豚を切断することができる。Using approximately 3500 strokes per minute with a stroke length of 10 mm, it is possible to cut approximately 200 to 225 pigs per hour.
図面において１は作動刃を表わし、２は振動装置または
打込み装置であり、刃１を垂直方向に往復動させる伝動
装置２ａを備えている。In the drawings, reference numeral 1 represents an operating blade, and reference numeral 2 represents a vibration device or a driving device, which is equipped with a transmission device 2a that reciprocates the blade 1 in the vertical direction.
３は案内装置であり、この案内装置３は動物の背中の脊
椎４と係合するようにされ、そして第４図に示すように
脊椎４に沿って刃を案内する。3 is a guide device which is adapted to engage with the vertebrae 4 of the animal's back and guide the blade along the vertebrae 4 as shown in FIG.
５は脊髄であり、また筋肉組識は６で示す。5 is the spinal cord, and the muscle tissue is indicated by 6.
案内装置３は刃１を案内する枠体７に支持されている。The guide device 3 is supported by a frame 7 that guides the blade 1.
伝動装置２ａを備えた振動装置２は枠体７で支持される
。The vibration device 2 with the transmission device 2 a is supported by a frame 7 .
殺した動物の体の腹側に当接するようにされた案内装置
は図示実施例では共通軸８ａのまわりで回転する二つの
ホイール８から成っている。The guide device, which is adapted to rest against the ventral side of the body of the killed animal, consists in the illustrated embodiment of two wheels 8 rotating about a common axis 8a.
これらのホイール８は第４図に示すように脊椎と係合す
るように設計される。These wheels 8 are designed to engage the vertebrae as shown in FIG.
代りに一対の摺動レールを用いてもよいことが認められ
る。It is recognized that a pair of sliding rails may be used instead.
ホイール８はばね装置として働く空気シリンダ９によっ
て前後に動かされ得る。The wheel 8 can be moved back and forth by an air cylinder 9 acting as a spring device.
１０はピストン棒である。１１は自在継手であり、この
自在継手１１に刃が回転可能に支持される。10 is a piston rod. 11 is a universal joint, and a blade is rotatably supported by this universal joint 11.
打込み装置の速度はハンドル１３に設けた弁１２によっ
て制御され、案内装置８０部分は第２のハンドル１５に
設けた弁１４によって制御される。The speed of the driving device is controlled by a valve 12 on the handle 13, and the guide device 80 part is controlled by a valve 14 on the second handle 15.
案内装置８が脊椎と係合する圧力は圧力計を結合した制
御装置によって調整され、そして案内装置の少なくとも
一つは湿気添加機能を備えている。The pressure with which the guide devices 8 engage the vertebrae is regulated by a control device coupled with a pressure gauge, and at least one of the guide devices is provided with a moisture addition function.
１８は針型案内装置１９を上下に動かす空気シリンダで
ある。18 is an air cylinder that moves the needle guide device 19 up and down.
この針型案内装置１９の降下位置は第５図に点線で示す
。The lowered position of the needle guide device 19 is indicated by a dotted line in FIG.
針型案内装置の運動は第２のハンドル１５における弁２
０によって作動される。The movement of the needle guide device is controlled by the valve 2 in the second handle 15.
0.
第４図に示すように、針型案内装置１９は脊椎に沿って
刃を案内し、他の型式の従来型の支持装置は殺した動物
の体を支持する。As shown in FIG. 4, a needle guide device 19 guides the blade along the spine, and other types of conventional support devices support the body of the killed animal.
切断装置は例えば空気シリンダまたは電気的に駆動され
る巻き上げプーリのような任意の型式の従来型の支持装
置によってつり下げられ得る。The cutting device may be suspended by any type of conventional support device, such as a pneumatic cylinder or an electrically driven hoisting pulley.
切断装置の垂直運動は枠体７上の押しボタン１６によっ
て作動され得る。The vertical movement of the cutting device can be actuated by a push button 16 on the frame 7.
切断装置は、切断装置が平衡となるように切断装置に設
けたフックによってつり下げられる。The cutting device is suspended by a hook provided on the cutting device such that the cutting device is balanced.
この発明による切断装置は小形で便利であり、手持型の
機械として用いられ得る。The cutting device according to the invention is compact and convenient and can be used as a hand-held machine.
代りに、切断装置は支持体につり下げられそして例えば
光電池または弁装置によって完全自動に構成され得る。Alternatively, the cutting device can be suspended on a support and be configured completely automatically, for example by a photovoltaic cell or a valve device.
この発明によれば、打込み装置は、切断装置が作動状態
にあるとき殺した動物の体の背側に配置され、作業者は
殺した動物の体の腹側に位置する。According to the invention, the driving device is located on the dorsal side of the body of the killed animal when the cutting device is in the activated state, and the operator is located on the ventral side of the body of the killed animal.
打込み装置の特殊な配置によって動力源は切断点すなわ
ち脊椎にできるだけ近接する。The special arrangement of the driving device brings the power source as close as possible to the cutting point, ie the vertebrae.
このような配置によって切断装置を比較的容易に操作で
き、また切断装置の摩滅および振動を減少できる。Such an arrangement allows the cutting device to be operated with relative ease and reduces wear and vibration on the cutting device.
切断装置はさらに択一的に引込められ得る可動案内装置
を備え、それにより殺した動物の体の形状、骨盤および
頭蓋骨に関連して調整できる装置を提供する。The cutting device further comprises a movable guide device that can be optionally retracted, thereby providing a device that can be adjusted in relation to the body shape, pelvis and skull of the killed animal.
毎分当りの振動数は好ましくは少なくとも６００である
必要がある。The frequency per minute should preferably be at least 600 vibrations.
例えば３５００またはそれ以上の高い振動数を用いるこ
とによって刃は多くの熟練した切込み運動を行なって非
常にきれいで一様な切断を行なうことができる。By using high frequencies, for example 3500 or more, the blade can perform many skilled cutting movements to produce very clean and uniform cuts.
第１〜５図はこの発明の一実施例を概略的に示し、第１
図は切断装置の概略正面図であり、第２図は第１図の線
Ａ−Ａに沿った垂直断面図であり、第３図は第１図の線
Ｂ−Ｂに沿った垂直断面図であり、第４図は切断装置が
案内装置によって脊椎に沿ってどのように案内されるか
を概略的に示し、第５図は第１図の線Ｃ−Ｃに沿った垂
直断面図である。
図中、１：刃、２：振動装置、３：案内装置。1 to 5 schematically show an embodiment of the present invention, and a first embodiment of the present invention is illustrated in FIGS.
The figure is a schematic front view of the cutting device, FIG. 2 is a vertical cross-sectional view along line A--A in FIG. 1, and FIG. 3 is a vertical cross-sectional view along line B--B in FIG. 4 schematically shows how the cutting device is guided along the vertebrae by the guide device, and FIG. 5 is a vertical cross-sectional view along the line C--C of FIG. 1. . In the figure, 1: blade, 2: vibration device, 3: guide device.
Claims (1)
よって作動される振動型の刃と、刃を支持している枠体
に一体に設けられ切断すべき殺した食用動物の体の脊椎
に沿った背側の案内装置および脊椎に沿って刃を案内す
る案内装置と、脊椎の各側で接触するようにされた腹側
の案内装置とを有することを特徴とする殺した食用動物
の体の切断装置。 ２ 腹側の案内装置が二つのホイールから成り、これら
二つのホイールが空気シリンダ等によって水平方向に弾
性的に支持されている特許請求の範囲第１項に記載の装
置。 ３ 案内装置が一つまたはそれ以上の摺動レール等から
成る特許請求の範囲第１項に記載の装置。 ４ 案内装置が脊髄の空所内へ強制され脊椎に対する刃
の案内を成す二又ホークから成る特許請求の範囲第１〜
３項のいずれかに記載の装置。[Claims] 1. A vibrating blade actuated by a driving device or the like provided on one end opposite the handle, and a killed food animal to be cut, provided integrally with a frame supporting the blade. a dorsal guide device that guides the blade along the spine of the body of the person, and a ventral guide device that is adapted to come into contact on each side of the spine. A device for cutting the bodies of food animals. 2. Device according to claim 1, in which the ventral guide device consists of two wheels, which wheels are supported elastically in the horizontal direction, such as by air cylinders. 3. Device according to claim 1, in which the guiding device comprises one or more sliding rails or the like. 4. Claims 1 to 4 in which the guide device comprises a forked hawk forced into the cavity of the spinal cord to provide guidance of the blade against the spinal cord.
The device according to any of Item 3.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO792603A NO792603L (en) | 1979-08-10 | 1979-08-10 | DEVICE FOR PARTICIPATION OF SLAUGHTER. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5626137A JPS5626137A (en) | 1981-03-13 |
| JPS585649B2 true JPS585649B2 (en) | 1983-02-01 |
Family
ID=19885000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55106491A Expired JPS585649B2 (en) | 1979-08-10 | 1980-08-04 | A device for cutting the bodies of killed food animals |
Country Status (17)
| Country | Link |
|---|---|
| JP (1) | JPS585649B2 (en) |
| AT (1) | AT378670B (en) |
| AU (1) | AU525274B2 (en) |
| BE (1) | BE884704A (en) |
| BR (1) | BR8004911A (en) |
| DE (1) | DE3030013A1 (en) |
| DK (1) | DK345480A (en) |
| ES (1) | ES8103929A1 (en) |
| FI (1) | FI66520C (en) |
| FR (1) | FR2462870B1 (en) |
| GB (1) | GB2055548B (en) |
| IT (1) | IT1209252B (en) |
| NL (1) | NL8004364A (en) |
| NO (2) | NO792603L (en) |
| NZ (1) | NZ194605A (en) |
| SE (1) | SE433031B (en) |
| SU (1) | SU1145908A3 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1983000603A1 (en) * | 1981-08-26 | 1983-03-03 | Gerding, William | Improvement to circular saw for splitting animal carcass |
| SE458847B (en) * | 1987-09-02 | 1989-05-16 | J S Products Ab | DEVICE ON THE VEHICLE TRUCK LOADER FOR BIKE |
| NL1000260C2 (en) * | 1995-04-28 | 1996-10-29 | Stork Rms Bv | Device for sharing a piece of meat containing a bone part. |
| EP1434489A1 (en) * | 2001-10-03 | 2004-07-07 | Sfk-Danfotech A/S | Control means for an apparatus for the splitting along the symmetrical plane of slaughtered animals and method and apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5358387A (en) * | 1976-11-01 | 1978-05-26 | Moriharu Yamashita | Cutter for vertical deviding of butcher meat |
| JPS5424783A (en) * | 1977-07-19 | 1979-02-24 | Nobuo Koyama | Method and apparatus for dividing back of slaughtered animal |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7300140U (en) * | 1973-09-13 | Rotter A | Device for separating slaughter bodies | |
| US1271909A (en) * | 1915-07-17 | 1918-07-09 | Michael Pilnacek | Carcass-splitting machine. |
| US2775786A (en) * | 1954-05-27 | 1957-01-01 | Jr Carl J Zeitler | Carcass splitting machines |
| FR1566768A (en) * | 1968-03-29 | 1969-05-09 | ||
| CH609213A5 (en) * | 1976-01-08 | 1979-02-28 | Micarna Ag Fleischwaren | |
| FR2309151A1 (en) * | 1975-01-10 | 1976-11-26 | Durand Expl Atel Const Mecaniq | Carcass splitting machine - with two inside and one outside roller guiding reciprocating blade carriage along spine (BE120776) |
| FR2307471A1 (en) * | 1975-04-15 | 1976-11-12 | Durand Expl Atel Const Meca | Carcass splitting machine - with two inside and one outside roller guiding reciprocating blade carriage along spine (BE120776) |
| DK159579C (en) * | 1975-01-10 | 1991-04-29 | Ataliers De Const Mecaniques L | APPARATUS FOR SHARING ANIMAL SUSPENDED BODY OF ANIMALS |
| FR2362590A1 (en) * | 1976-08-23 | 1978-03-24 | Aubert George | Butcher's machine divides carcass along dorsal vertebrae - with flesh blade, gash widener and percussion cleaver |
| DE2657665C3 (en) * | 1976-12-20 | 1981-10-01 | Schmid & Wezel, 7133 Maulbronn | Jigsaw for cutting up animals for slaughter |
-
1979
- 1979-08-10 NO NO792603A patent/NO792603L/en unknown
-
1980
- 1980-07-30 NL NL8004364A patent/NL8004364A/en not_active Application Discontinuation
- 1980-08-04 JP JP55106491A patent/JPS585649B2/en not_active Expired
- 1980-08-05 BR BR8004911A patent/BR8004911A/en unknown
- 1980-08-05 FR FR8017306A patent/FR2462870B1/en not_active Expired
- 1980-08-05 FI FI802448A patent/FI66520C/en not_active IP Right Cessation
- 1980-08-06 IT IT8024029A patent/IT1209252B/en active
- 1980-08-07 AT AT0406980A patent/AT378670B/en not_active IP Right Cessation
- 1980-08-08 AU AU61188/80A patent/AU525274B2/en not_active Ceased
- 1980-08-08 BE BE0/201696A patent/BE884704A/en not_active IP Right Cessation
- 1980-08-08 GB GB8025895A patent/GB2055548B/en not_active Expired
- 1980-08-08 ES ES494103A patent/ES8103929A1/en not_active Expired
- 1980-08-08 SU SU802968560A patent/SU1145908A3/en active
- 1980-08-08 SE SE8005633A patent/SE433031B/en not_active IP Right Cessation
- 1980-08-08 DE DE19803030013 patent/DE3030013A1/en not_active Withdrawn
- 1980-08-08 NZ NZ194605A patent/NZ194605A/en unknown
- 1980-08-11 DK DK345480A patent/DK345480A/en not_active Application Discontinuation
-
1981
- 1981-06-25 NO NO81812166A patent/NO156191C/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5358387A (en) * | 1976-11-01 | 1978-05-26 | Moriharu Yamashita | Cutter for vertical deviding of butcher meat |
| JPS5424783A (en) * | 1977-07-19 | 1979-02-24 | Nobuo Koyama | Method and apparatus for dividing back of slaughtered animal |
Also Published As
| Publication number | Publication date |
|---|---|
| NO156191B (en) | 1987-05-04 |
| AT378670B (en) | 1985-09-10 |
| FI802448A (en) | 1981-02-11 |
| NO156191C (en) | 1987-08-12 |
| ES494103A0 (en) | 1981-04-01 |
| NL8004364A (en) | 1981-02-12 |
| FR2462870A1 (en) | 1981-02-20 |
| NZ194605A (en) | 1984-07-06 |
| IT8024029A0 (en) | 1980-08-06 |
| FI66520C (en) | 1984-11-12 |
| SU1145908A3 (en) | 1985-03-15 |
| ES8103929A1 (en) | 1981-04-01 |
| GB2055548A (en) | 1981-03-11 |
| DE3030013A1 (en) | 1981-04-02 |
| FI66520B (en) | 1984-07-31 |
| SE8005633L (en) | 1981-02-11 |
| NO792603L (en) | 1981-02-11 |
| AU525274B2 (en) | 1982-10-28 |
| IT1209252B (en) | 1989-07-16 |
| BE884704A (en) | 1980-12-01 |
| ATA406980A (en) | 1985-02-15 |
| SE433031B (en) | 1984-05-07 |
| AU6118880A (en) | 1981-02-12 |
| JPS5626137A (en) | 1981-03-13 |
| NO812166L (en) | 1981-02-11 |
| BR8004911A (en) | 1981-02-24 |
| FR2462870B1 (en) | 1985-07-12 |
| GB2055548B (en) | 1983-10-05 |
| DK345480A (en) | 1981-02-11 |
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