(19)

(11)

EP 0 195 028 A1

(12)

(43) Date of publication: 24.09.1986 Bulletin 1986/39 (21) Application number: 85904409.0 (22) Date of filing: 05.09.1985

(51) International Patent Classification (IPC):  G09B 9/ 12( . ) G09B 9/ 22( . ) G09B 9/ 14( . ) G09B 9/ 30( . ) (86) International application number: PCT/AU1985/000217 (87) International publication number: WO 1986/001623 (13.03.1986 Gazette 1986/06)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 06.09.1984 AU 19840006970 (71) Applicant: JAMES, Christopher Collaroy, NSW 2097 (AU)	(72) Inventor: JAMES, Christopher Collaroy, NSW 2097 (AU)