(19)

(11)

EP 0 020 442 A1

(12)

(43) Date of publication: 07.01.1981 Bulletin 1981/01 (21) Application number: 79901224.0 (22) Date of filing: 19.10.1979

(51) International Patent Classification (IPC):  B41J 3/ 46( . ) G06F 1/ 16( . ) G06F 3/ 147( . ) G02F 1/ 133( . ) G06F 3/ 033( . ) (86) International application number: PCT/GB1979/000167 (87) International publication number: WO 1980/000885 (01.05.1980 Gazette 1980/10)

(84) Designated Contracting States: AT CH DE FR GB LU NL SE (30) Priority: 23.10.1978 GB 19410065278 (71) Applicant: LOWENTHAL, Hans London, W1P 6AD (GB)	(72) Inventor: LOWENTHAL, Hans London, W1P 6AD (GB)