(19)

(11)

EP 0 386 099 A1

(12)

(43) Date of publication: 12.09.1990 Bulletin 1990/37 (21) Application number: 88910152.0 (22) Date of filing: 27.10.1988

(51) International Patent Classification (IPC):  A63B 63/ 00( . ) A63B 69/ 36( . ) (86) International application number: PCT/SE1988/000571 (87) International publication number: WO 1989/004700 (01.06.1989 Gazette 1989/12)

(84) Designated Contracting States: AT CH DE GB IT LI NL (30) Priority: 17.11.1987 SE 19870004528 (71) Applicant: ATREMA AB S-462 23 Vänersborg (SE)	(72) Inventor: GRENTHE, Bo S-462 35 Vänersborg (SE) (74) Representative: Lindberg, Klas Valter Bo, et al  AWAPATENT AB, Södra Hamngatan 37-41, P.O. Box 11394 S-404 28 Göteborg S-404 28 Göteborg (SE)