(19)

(11)

EP 0 394 340 A1

(12)

(43) Date of publication: 31.10.1990 Bulletin 1990/44 (21) Application number: 89901322.0 (22) Date of filing: 13.01.1989

(51) International Patent Classification (IPC):  G03B 21/ 62( . ) (86) International application number: PCT/NO1989/000007 (87) International publication number: WO 1989/006825 (27.07.1989 Gazette 1989/16)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 14.01.1988 NO 19880000150 (71) Applicant: LYNGHOLM, Tore N-5500 Haugesund (NO)	(72) Inventor: LYNGHOLM, Tore N-5500 Haugesund (NO) (74) Representative: Wiklund, Erik, et al  AWAPATENT AB, Box 5117 S-200 71 Malmö S-200 71 Malmö (SE)