(19)

(11)

EP 0 592 414 A1

(12)

(43) Date of publication: 20.04.1994 Bulletin 1994/16 (21) Application number: 91911701.0 (22) Date of filing: 18.06.1991

(51) International Patent Classification (IPC):  A63B 59/ 00( . ) A63B 59/ 04( . ) A63B 49/ 08( . ) (86) International application number: PCT/SE1991/000438 (87) International publication number: WO 1991/019545 (26.12.1991 Gazette 1991/29)

(84) Designated Contracting States: BE DE ES FR GB NL (30) Priority: 18.06.1990 SE 19900002158 (71) Applicant: STRÖMBERG, Rolf S-164 33 Kista (SE)	(72) Inventor: STRÖMBERG, Rolf S-164 33 Kista (SE) (74) Representative: Grahn, Thomas, et al  Oscar Grahn Patentbyra AB P.O. Box 19540 S-104 32 Stockholm S-104 32 Stockholm (SE)