(19)

(11)

EP 0 215 939 A1

(12)

(43) Date of publication: 01.04.1987 Bulletin 1987/14 (21) Application number: 86902536.0 (22) Date of filing: 21.03.1986

(51) International Patent Classification (IPC):  G03F 1/ 90( . ) (86) International application number: PCT/SE1986/000126 (87) International publication number: WO 1986/005744 (09.10.1986 Gazette 1986/22)

(84) Designated Contracting States: AT DE GB (30) Priority: 27.03.1985 SE 19850001511 (71) Applicant: LAINE, Martti S-191 Sollentuna (SE)	(72) Inventor: LAINE, Martti S-191 Sollentuna (SE) (74) Representative: Grennberg, Erik Bertil, et al  H. Albihns Patentbyra AB, Box 3137 S-103 62 Stockholm S-103 62 Stockholm (SE)