(19)

(11)

EP 0 408 656 A1

(12)

(43) Date of publication: 23.01.1991 Bulletin 1991/04 (21) Application number: 89905229.0 (22) Date of filing: 11.04.1989

(51) International Patent Classification (IPC):  E04B 1/ 00( . ) E04G 23/ 02( . ) E04F 19/ 06( . ) (86) International application number: PCT/SE1989/000196 (87) International publication number: WO 1989/009865 (19.10.1989 Gazette 1989/25)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 12.04.1988 SE 19880001338 (71) Applicant: GREEN, Uno S-371 42 Karlskrona (SE)	(72) Inventor: GREEN, Uno S-371 42 Karlskrona (SE) (74) Representative: Andersson, Per-Olof, et al  AWAPATENT AB, Box 5117 S-200 71 Malmö S-200 71 Malmö (SE)