(19)

(11)

EP 0 618 991 A1

(12)

(43) Date of publication: 12.10.1994 Bulletin 1994/41 (21) Application number: 92920641.0 (22) Date of filing: 25.09.1992

(51) International Patent Classification (IPC):  E04G 9/ 00( . ) B28B 7/ 02( . ) E04G 11/ 06( . ) E04G 13/ 04( . ) B28B 7/ 00( . ) E04G 9/ 08( . ) E04G 11/ 08( . ) (86) International application number: PCT/CA1992/000424 (87) International publication number: WO 1994/008110 (14.04.1994 Gazette 1994/09)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL SE (71) Applicant: CHANNEL FORM SYSTEMS, INC. Lions Bay, British Columbia, VON 2EO (CA)	(72) Inventor: CHANNEL FORM SYSTEMS, INC. Lions Bay, British Columbia, VON 2EO (CA) (74) Representative: Patentanwälte Beetz - Timpe - Siegfried Schmitt-Fumian - Mayr  Steinsdorfstrasse 10 D-80538 München D-80538 München (DE)