(19)

(11)

EP 0 477 255 A1

(12)

(43) Date of publication: 01.04.1992 Bulletin 1992/14 (21) Application number: 90909642.0 (22) Date of filing: 06.06.1990

(51) International Patent Classification (IPC):  G03B 21/ 52( . ) G03B 31/ 02( . ) (86) International application number: PCT/DK1990/000139 (87) International publication number: WO 1990/015361 (13.12.1990 Gazette 1990/28)

(84) Designated Contracting States: DE DK FR IT SE (30) Priority: 06.06.1989 DK 19890002747 (71) Applicant: SPARKJAER, Ole DK-3200 Helsinge (DK)	(72) Inventor: SPARKJAER, Ole DK-3200 Helsinge (DK) (74) Representative: Stellinger, Jens-Holger  c/o Patentbureau Giersing & Stellinger A/S Teglporten 3 DK-3460 Birkeroed DK-3460 Birkeroed (DK)