(19)

(11)

EP 0 341 244 A1

(12)

(43) Date of publication: 15.11.1989 Bulletin 1989/46 (21) Application number: 87907889.0 (22) Date of filing: 10.11.1987

(51) International Patent Classification (IPC):  G01N 29/ 00( . ) G01N 29/ 32( . ) G01N 29/ 07( . ) (86) International application number: PCT/US1987/002914 (87) International publication number: WO 1989/004524 (18.05.1989 Gazette 1989/11)

(84) Designated Contracting States: DE FR GB IT SE (71) Applicant: THE EXPERT SYSTEM TECHNOLOGIES, INC. San Diego, CA 92117 (US)	(72) Inventors: SALVADO, Carlos, A. Carlsbad, CA 92008 (US) WADE, Bruce, E. San Diego, CA 92120 (US) (74) Representative: Dreiss, Hosenthien, Fuhlendorf & Partner  Gerokstrasse 6 D-70188 Stuttgart D-70188 Stuttgart (DE)