(19)

(11)

EP 0 423 131 A1

(12)

(43) Date of publication: 24.04.1991 Bulletin 1991/17 (21) Application number: 89904739.0 (22) Date of filing: 07.04.1989

(51) International Patent Classification (IPC):  H04M 1/ 00( . ) H04M 1/ 66( . ) H04M 1/ 665( . ) H04M 1/ 57( . ) H04M 1/ 663( . ) (86) International application number: PCT/AU1989/000152 (87) International publication number: WO 1990/001236 (08.02.1990 Gazette 1990/04)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 25.07.1988 AU 19880009430 (71) Applicant: ANDERSON, John, James South Coogee, NSW 2034 (AU)	(72) Inventor: ANDERSON, John, James South Coogee, NSW 2034 (AU) (74) Representative: Gee, David William  Farmhouse Court Marston Nr. Sutton Coldfield West Midlands B76 0DW Marston Nr. Sutton Coldfield West Midlands B76 0DW (GB)