(19)

(11)

EP 0 465 478 A1

(12)

(43) Date of publication: 15.01.1992 Bulletin 1992/03 (21) Application number: 90904214.0 (22) Date of filing: 23.02.1990

(51) International Patent Classification (IPC):  B07C 5/ 14( . ) G06Q 10/ 00( . ) G01N 21/ 898( . ) (86) International application number: PCT/CA1990/000065 (87) International publication number: WO 1990/011488 (04.10.1990 Gazette 1990/23)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (30) Priority: 29.03.1989 US 19890330204 (71) Applicant: VISIONSMART INC. Edmonton, Alberta T6H 1E7 (CA)	(72) Inventors: FLATMAN, Carl Edmonton, Alberta T6E 4S6 (CA) BAUER, Will Edmonton, Alberta T6G 0M1 (CA) KENWAY, Dan Edmonton, Alberta T6G 1N7 (CA) (74) Representative: Lehn, Werner, Dipl.-Ing., et al  Hoffmann, Eitle & Partner, Patentanwälte, Postfach 81 04 20 D-81904 München D-81904 München (DE)