(19)

(11)

EP 0 317 552 A1

(12)

(43) Date of publication: 31.05.1989 Bulletin 1989/22 (21) Application number: 87903224.0 (22) Date of filing: 22.05.1987

(51) International Patent Classification (IPC):  G09F 11/ 26( . ) G09F 11/ 24( . ) (86) International application number: PCT/AU1987/000145 (87) International publication number: WO 1988/009544 (01.12.1988 Gazette 1988/26)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (71) Applicant: BORKERT, Chestmir Prospect, NSW 2149 (AU)	(72) Inventor: BORKERT, Chestmir Prospect, NSW 2149 (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)