(19)

(11)

EP 0 039 347 A1

(12)

(43) Date of publication: 11.11.1981 Bulletin 1981/45 (21) Application number: 80901960.0 (22) Date of filing: 27.10.1980

(51) International Patent Classification (IPC):  G06M 1/ 04( . ) G06M 1/ 16( . ) G06M 1/ 10( . ) G06M 1/ 26( . ) (86) International application number: PCT/GB1980/000183 (87) International publication number: WO 1981/001212 (30.04.1981 Gazette 1981/11)

(84) Designated Contracting States: CH DE FR GB LI (30) Priority: 26.10.1979 GB 19790037228 (71) Applicant: MECOM STANDARD LIMITED London NW11 6PD (GB)	(72) Inventor: ALWAY, Peter Hertfordshire (GB) (74) Representative: Garratt, Peter Douglas, et al  Mathys & Squire 100 Grays Inn Road London WC1X 8AL London WC1X 8AL (GB)