(19)

(11)

EP 0 847 463 A1

(12)

(43) Date of publication: 17.06.1998 Bulletin 1998/25 (21) Application number: 96935643.0 (22) Date of filing: 05.09.1996

(51) International Patent Classification (IPC):  E04B 2/ 74( . ) (86) International application number: PCT/SE1996/001101 (87) International publication number: WO 1997/014855 (24.04.1997 Gazette 1997/18)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 19.10.1995 SE 19950003654 (71) Applicant: Pehrson, Claes-Göran 532 74 Skara (SE)	(72) Inventor: Pehrson, Claes-Göran 532 74 Skara (SE) (74) Representative: Franzén, Lars Hjalmar, et al  AWAPATENT AB, Södra Hamngatan 37-41, P.O. Box 11394 404 28 Göteborg 404 28 Göteborg (SE)