(19)

(11)

EP 0 289 571 A1

(12)

(43) Date of publication: 09.11.1988 Bulletin 1988/45 (21) Application number: 87907549.0 (22) Date of filing: 22.10.1987

(51) International Patent Classification (IPC):  A62C( . ) A62C 3/ 08( . ) A62C 35/ 13( . ) A62C 37/ 40( . ) A62C 35/ 11( . ) A62C 35/ 08( . ) A62C 35/ 64( . ) (86) International application number: PCT/US1987/002705 (87) International publication number: WO 1988/003824 (02.06.1988 Gazette 1988/12)

(84) Designated Contracting States: BE DE FR GB IT NL SE (30) Priority: 21.11.1986 US 19860933499 (71) Applicant: Santa Barbara Research Center Goleta California 93117 (US)	(72) Inventors: KERN, Mark, T. Goleta, CA 93117 (US) HEATH, Richard, C. East Sussex BN7 1EZ (GB) STREATOR, John West Sussex BN5 9QJ (GB) (74) Representative: Colgan, Stephen James, et al  CARPMAELS & RANSFORD 43 Bloomsbury Square London WC1A 2RA London WC1A 2RA (GB)