(19)

(11)

EP 0 187 139 A1

(12)

(43) Date of publication: 16.07.1986 Bulletin 1986/29 (21) Application number: 83902394.0 (22) Date of filing: 06.07.1983

(51) International Patent Classification (IPC):  A01L 1/ 02( . ) (86) International application number: PCT/US1983/000992 (87) International publication number: WO 1985/000271 (31.01.1985 Gazette 1985/03)

(84) Designated Contracting States: FR (71) Applicant: LINFOOT, William R. Pleasanton, CA 94566 (US)	(72) Inventor: LINFOOT, William R. Pleasanton, CA 94566 (US)