(19)

(11)

EP 0 819 245 A1

(12)

(43) Date of publication: 21.01.1998 Bulletin 1998/04 (21) Application number: 96909458.0 (22) Date of filing: 04.04.1996

(51) International Patent Classification (IPC):  G01N 21/ 956( . ) G01N 27/ 84( . ) (86) International application number: PCT/SE1996/000444 (87) International publication number: WO 1996/031767 (10.10.1996 Gazette 1996/45)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 05.04.1995 SE 19950001243 (71) Applicant: Contest Marketing AB 831 06 Östersund (SE)	(72) Inventor: BERGSTRAND, Karl-Gunnar S-835 41 Dvärsätt (SE) (74) Representative: Mossmark, Anders  Albihn West AB, Box 142 401 22 Göteborg 401 22 Göteborg (SE)