(19)

(11)

EP 0 755 455 A1

(12)

(43) Date of publication: 29.01.1997 Bulletin 1997/05 (21) Application number: 95915218.0 (22) Date of filing: 10.04.1995

(51) International Patent Classification (IPC):  C12M 1/ 00( . ) C12Q 1/ 02( . ) C12M 1/ 34( . ) C12Q 1/ 04( . ) (86) International application number: PCT/FI1995/000198 (87) International publication number: WO 1995/027795 (19.10.1995 Gazette 1995/45)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI NL SE (30) Priority: 08.04.1994 FI 19940001631 05.12.1994 FI 19940005718 (71) Applicant: VALTION TEKNILLINEN TUTKIMUSKESKUS 02150 Espoo 15 (FI)	(72) Inventor: ITÄVAARA, Merja FIN-02150 Espoo (FI) (74) Representative: Papula, Antti, et al  Papula Rein Lahtela Oy, P.O. Box 981 00101 Helsinki 00101 Helsinki (FI)