(19)

(11)

EP 0 415 927 A1

(12)

(43) Date of publication: 13.03.1991 Bulletin 1991/11 (21) Application number: 89900627.0 (22) Date of filing: 08.12.1988

(51) International Patent Classification (IPC):  E04B 1/ 32( . ) E04C 3/ 40( . ) (86) International application number: PCT/GB1988/001092 (87) International publication number: WO 1990/006409 (14.06.1990 Gazette 1990/14)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (71) Applicant: AL-KHATTAT, Ibrahim Mahdi Talacre Clwyd CH8 9RS (GB)	(72) Inventor: AL-KHATTAT, Ibrahim Mahdi Talacre Clwyd CH8 9RS (GB) (74) Representative: Kelvie, George Thomas  Urquhart-Dykes & Lord The Victoria Suite 3rd Floor Northern Assurance Buildings Albert Square Manchester M2 4DN Manchester M2 4DN (GB)