(19)

(11)

EP 0 136 294 A1

(12)

(43) Date of publication: 10.04.1985 Bulletin 1985/15 (21) Application number: 84900696.0 (22) Date of filing: 16.02.1984

(51) International Patent Classification (IPC):  G09B 1/ 16( . ) G09D 3/ 02( . ) A63H 33/ 06( . ) G09F 7/ 14( . ) (86) International application number: PCT/AU1984/000021 (87) International publication number: WO 1984/003384 (30.08.1984 Gazette 1984/21)

(84) Designated Contracting States: DE FR GB NL (30) Priority: 16.02.1983 AU 19830008063 (71) Applicant: KENNEDY, George Sandy Bay, TAS 7005 (AU)	(72) Inventor: KENNEDY, George Sandy Bay, TAS 7005 (AU) (74) Representative: Warren, Anthony Robert, et al  BARON & WARREN, 18 South End, Kensington London W8 5BU London W8 5BU (GB)