(19)

(11)

EP 0 258 267 A1

(12)

(43) Date of publication: 09.03.1988 Bulletin 1988/10 (21) Application number: 87900204.0 (22) Date of filing: 15.12.1986

(51) International Patent Classification (IPC):  H04M 1/ 667( . ) (86) International application number: PCT/GB1986/000763 (87) International publication number: WO 1987/004031 (02.07.1987 Gazette 1987/14)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 23.12.1985 GB 19850031680 (71) Applicants: KING, James Bertram London, EC4V 5AT (GB) KOH, Kwaun Peng Setapak, 53100 Kuala Lumpur (MY)	(72) Inventors: KING, James Bertram London, EC4V 5AT (GB) KOH, Kwaun Peng Setapak, 53100 Kuala Lumpur (MY) (74) Representative: King, Bertram Thomas  KINGS PATENT AGENCY LIMITED 73 Farringdon Road London EC1M 3JB London EC1M 3JB (GB)