(19)

(11)

EP 0 227 791 A1

(12)

(43) Date of publication: 08.07.1987 Bulletin 1987/28 (21) Application number: 86904447.0 (22) Date of filing: 02.07.1986

(51) International Patent Classification (IPC):  E04B 1/ 64( . ) (86) International application number: PCT/SE1986/000322 (87) International publication number: WO 1987/000224 (15.01.1987 Gazette 1987/01)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 02.07.1985 SE 19850003297 (71) Applicant: CEDERSTRÖM, Rolf S-116 49 Stockholm (SE)	(72) Inventor: CEDERSTRÖM, Rolf S-116 49 Stockholm (SE) (74) Representative: Moberg, Sture  Kungstensgatan 48 S-11359 Stockholm S-11359 Stockholm (SE)