(19)

(11)

EP 0 076 274 A1

(12)

(43) Date of publication: 13.04.1983 Bulletin 1983/15 (21) Application number: 82900923.0 (22) Date of filing: 07.04.1982

(51) International Patent Classification (IPC):  A63F 9/ 24( . ) G06F 19/ 00( . ) (86) International application number: PCT/AU1982/000052 (87) International publication number: WO 1982/003562 (28.10.1982 Gazette 1982/26)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 09.04.1981 AU 19810008389 (71) Applicant: CHALMERS, Gregory Paul Eastwood, N.S.W. 2122 (AU)	(72) Inventor: CHALMERS, Gregory Paul Eastwood, N.S.W. 2122 (AU) (74) Representative: Kemp, John Arthur  14 South Square, Gray's Inn London WC1R 5EU London WC1R 5EU (GB)