(19)

(11)

EP 0 823 053 A1

(12)

(43) Date of publication: 11.02.1998 Bulletin 1998/07 (21) Application number: 95922023.0 (22) Date of filing: 24.04.1995

(51) International Patent Classification (IPC):  G01N 27/ 90( . ) (86) International application number: PCT/SE1995/000444 (87) International publication number: WO 1996/034279 (31.10.1996 Gazette 1996/48)

(84) Designated Contracting States: BE DE DK FR GB SE (71) Applicants: Larsson, Göran 111 36 Stockholm (SE) Sundström, Jan 138 37 Alta (SE)	(72) Inventors: Larsson, Göran 111 36 Stockholm (SE) Sundström, Jan 138 37 Alta (SE) (74) Representative: Hynell, Magnus  Hynell Patenttjänst AB, Patron Carls väg 2 683 40 Hagfors/Uddeholm 683 40 Hagfors/Uddeholm (SE)