(19)

(11)

EP 0 382 811 A1

(12)

(43) Date of publication: 22.08.1990 Bulletin 1990/34 (21) Application number: 89907474.0 (22) Date of filing: 02.06.1989

(51) International Patent Classification (IPC):  G06F 3/ 00( . ) G06K 7/ 10( . ) G06F 21/ 00( . ) (86) International application number: PCT/US1989/002360 (87) International publication number: WO 1989/012864 (28.12.1989 Gazette 1989/30)

(84) Designated Contracting States: BE CH DE FR GB LI (30) Priority: 14.06.1988 US 19880206001 (71) Applicant: HAIT, John N. Missoula, MT 59801 (US)	(72) Inventor: HAIT, John N. Missoula, MT 59801 (US) (74) Representative: Brock, Peter William, et al  Urquhart-Dykes & Lord 1 Richfield Place Richfield Avenue Reading RG1 8EQ Berkshire Reading RG1 8EQ Berkshire (GB)