(19)

(11)

EP 0 104 169 A1

(12)

(43) Date of publication: 04.04.1984 Bulletin 1984/14 (21) Application number: 82901340.0 (22) Date of filing: 30.03.1982

(51) International Patent Classification (IPC):  G06F 11/ 22( . ) G06F 11/ 00( . ) G01R 31/ 3193( . ) (86) International application number: PCT/US1982/000399 (87) International publication number: WO 1983/003488 (13.10.1983 Gazette 1983/24)

(84) Designated Contracting States: DE FR GB (71) Applicant: Lockheed Corporation Burbank California 91520 (US)	(72) Inventor: STEINER, William George Marietta, GA 30067 (US) (74) Representative: Boon, Graham Anthony, et al  Elkington and Fife Prospect House 8 Pembroke Road Sevenoaks, Kent TN13 1XR Sevenoaks, Kent TN13 1XR (GB)