(19)

(11)

EP 0 249 628 A1

(12)

(43) Date of publication: 23.12.1987 Bulletin 1987/52 (21) Application number: 87900454.0 (22) Date of filing: 02.12.1986

(51) International Patent Classification (IPC):  G01N 33/ 50( . ) C12Q 1/ 68( . ) C12Q 1/ 00( . ) C12Q 1/ 70( . ) (86) International application number: PCT/US1986/002594 (87) International publication number: WO 1987/003621 (18.06.1987 Gazette 1987/13)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 03.12.1985 US 19850804014 (71) Applicant: EL-GEWELY, M. Raafat Ypsilanti, MI 48197 (US)	(72) Inventor: EL-GEWELY, M. Raafat Ypsilanti, MI 48197 (US) (74) Representative: Kirby, Harold Douglas Benson, et al  G.F. Redfern & Company Marlborough Lodge 14 Farncombe Road Worthing West Sussex BN11 2BT Worthing West Sussex BN11 2BT (GB)