(19)

(11)

EP 0 447 419 A1

(12)

(43) Date of publication: 25.09.1991 Bulletin 1991/39 (21) Application number: 89913212.0 (22) Date of filing: 05.12.1989

(51) International Patent Classification (IPC):  E06B 3/ 70( . ) (86) International application number: PCT/SE1989/000710 (87) International publication number: WO 1990/007047 (28.06.1990 Gazette 1990/15)

(84) Designated Contracting States: AT DE FR GB (30) Priority: 12.12.1988 SE 19880004486 (71) Applicant: NYGARD, Jonny S-744 91 Heby (SE)	(72) Inventor: NYGARD, Jonny S-744 91 Heby (SE) (74) Representative: Nilsson, Karl Ingvar, et al  STENHAGEN PATENTBYRA AB P.O. Box 4630 S-116 91 Stockholm S-116 91 Stockholm (SE)