(19)

(11)

EP 0 220 269 A1

(12)

(43) Date of publication: 06.05.1987 Bulletin 1987/19 (21) Application number: 86902936.0 (22) Date of filing: 22.04.1986

(51) International Patent Classification (IPC):  G01N 1/ 30( . ) (86) International application number: PCT/SE1986/000185 (87) International publication number: WO 1986/006479 (06.11.1986 Gazette 1986/24)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 23.04.1985 SE 19850001959 (71) Applicant: RENVALL, Henrik Gerhard S-632 30 Eskilstuna (SE)	(72) Inventor: RENVALL, Henrik Gerhard S-632 30 Eskilstuna (SE)