(19)

(11)

EP 0 032 506 A1

(12)

(43) Date of publication: 29.07.1981 Bulletin 1981/30 (21) Application number: 80901593.0 (22) Date of filing: 23.07.1980

(51) International Patent Classification (IPC):  A63B 49/ 04( . ) A63B 59/ 00( . ) (86) International application number: PCT/US1980/000943 (87) International publication number: WO 1981/000214 (05.02.1981 Gazette 1981/04)

(84) Designated Contracting States: CH DE FR GB LI NL SE (30) Priority: 26.07.1979 US 19790061052 (71) Applicant: BATTELLE DEVELOPMENT CORPORATION Columbus Ohio 43201 (US)	(72) Inventors: ARIEH, Simon CH-1208 Geneva (CH) BUDLIGER, Jean-Pierre CH-1213 Onex (CH) COURVOISIER, Guy CH-1202 Geneva (CH) (74) Representative: Dousse, Blasco, et al  7, route de Drize CH-1227 Carouge/Genève CH-1227 Carouge/Genève (CH)