(19)

(11)

EP 0 137 013 A1

(12)

(43) Date of publication: 17.04.1985 Bulletin 1985/16 (21) Application number: 84900828.0 (22) Date of filing: 31.01.1984

(51) International Patent Classification (IPC):  E05B 39/ 04( . ) G07F 19/ 00( . ) G07F 9/ 06( . ) (86) International application number: PCT/US1984/000143 (87) International publication number: WO 1984/003162 (16.08.1984 Gazette 1984/20)

(84) Designated Contracting States: DE FR (30) Priority: 03.02.1983 GB 19830002932 30.06.1983 US 19830509488 (71) Applicant: NCR CORPORATION Dayton, Ohio 45479 (US)	(72) Inventors: KEIR, Grant, George, Herschelle Dundee DD2 7HN (GB) PEEBLES, John, Alexander Dundee DD2 2HL (GB) McNAB, Jonas, Kidd Dundee DD2 5PU (GB) CAMPBELL, Ian, Nicoll Dundee DD2 5JL (GB) (74) Representative: Robinson, Robert George  International Patent Department NCR Limited 206 Marylebone Road London NW1 6LY London NW1 6LY (GB)