(19)

(11)

EP 0 190 188 A1

(12)

(43) Date of publication: 13.08.1986 Bulletin 1986/33 (21) Application number: 85903337.0 (22) Date of filing: 09.07.1985

(51) International Patent Classification (IPC):  C12M 3/ 02( . ) (86) International application number: PCT/GB1985/000307 (87) International publication number: WO 1986/000636 (30.01.1986 Gazette 1986/03)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 10.07.1984 GB 19840017590 (71) Applicants: STARKIE, Selby, John Gulbourn, Cambridge, CB1 5DY (GB) HOPKINSON, David, George Faulkland, Somerset, BA3 5UX (GB)	(72) Inventors: STARKIE, Selby, John Gulbourn, Cambridge, CB1 5DY (GB) HOPKINSON, David, George Faulkland, Somerset, BA3 5UX (GB)