(19)

(11)

EP 0 402 373 A1

(12)

(43) Date of publication: 19.12.1990 Bulletin 1990/51 (21) Application number: 89902593.0 (22) Date of filing: 07.02.1989

(51) International Patent Classification (IPC):  C12Q 1/ 26( . ) C12Q 1/ 32( . ) C12Q 1/ 28( . ) (86) International application number: PCT/US1989/000485 (87) International publication number: WO 1989/007653 (24.08.1989 Gazette 1989/20)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 12.02.1988 US 19880155498 (71) Applicant: GDS TECHNOLOGY, INC. Elkhart, IN 46514 (US)	(72) Inventors: DECASTRO, Aurora, Fernandez Union, MI 49130 (US) GUPTA, Surendra, Kumar Elkhart, IN 46514 (US) AGARWAL, Arun, Kumar Elkhart, IN 46514 (US) (74) Representative: Bizley, Richard Edward, et al  Hepworth, Lawrence, Bryer & Bizley Merlin House Falconry Court Bakers Lane Epping Essex CM16 5DQ Epping Essex CM16 5DQ (GB)