(19)

(11)

EP 0 231 293 A1

(12)

(43) Date of publication: 12.08.1987 Bulletin 1987/33 (21) Application number: 86904747.0 (22) Date of filing: 06.08.1986

(51) International Patent Classification (IPC):  A63B 69/ 36( . ) (86) International application number: PCT/AU1986/000223 (87) International publication number: WO 1987/000762 (12.02.1987 Gazette 1987/04)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 06.08.1985 AU 19850001807 10.12.1985 AU 19850003797 (71) Applicant: CROSSLEY, William, James Tarragindi, Brisbane, QLD 4121 (AU)	(72) Inventor: CROSSLEY, William, James Tarragindi, Brisbane, QLD 4121 (AU)