(19)

(11)

EP 0 267 191 A1

(12)

(43) Date of publication: 18.05.1988 Bulletin 1988/20 (21) Application number: 86904432.0 (22) Date of filing: 23.06.1986

(51) International Patent Classification (IPC):  E04B 1/ 24( . ) E04C 3/ 08( . ) E04B 7/ 02( . ) E04C 3/ 04( . ) (86) International application number: PCT/SE1986/000302 (87) International publication number: WO 1987/000570 (29.01.1987 Gazette 1987/03)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 22.07.1985 SE 19850003544 (71) Applicant: SERNEBLAD, Lars Gunnar S-413 11 Göteborg (SE)	(72) Inventor: SERNEBLAD, Lars Gunnar S-413 11 Göteborg (SE)