(19)

(11)

EP 0 135 560 A1

(12)

(43) Date of publication: 03.04.1985 Bulletin 1985/14 (21) Application number: 84901020.0 (22) Date of filing: 16.02.1984

(51) International Patent Classification (IPC):  A61F 5/ 445( . ) B26F 1/ 38( . ) B26F 1/ 14( . ) (86) International application number: PCT/SE1984/000055 (87) International publication number: WO 1984/003215 (30.08.1984 Gazette 1984/21)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL (30) Priority: 25.02.1983 SE 19830001055 (71) Applicant: SAMUELSSON & WALLSTRÖM PRODUCTION AB S-421 07 Västra Frölunda (SE)	(72) Inventors: SAMUELSSON, Bengt S-421 66 Västra Frölunda (SE) WALLSTRÖM, Hakan S-421 66 Västra Frölunda (SE)