(19)

(11)

EP 0 098 845 A1

(12)

(43) Date of publication: 25.01.1984 Bulletin 1984/04 (21) Application number: 83900285.0 (22) Date of filing: 12.01.1983

(51) International Patent Classification (IPC):  E04F 21/ 08( . ) E04G 21/ 04( . ) (86) International application number: PCT/NO1983/000002 (87) International publication number: WO 1983/002475 (21.07.1983 Gazette 1983/17)

(84) Designated Contracting States: BE DE FR GB NL SE (30) Priority: 18.01.1982 NO 19820000143 (71) Applicant: NORGIPS A/S N-3001 Drammen (NO)	(72) Inventor: NILSEN, Walter N-3000 Drammen (NO)