(19)

(11)

EP 0 208 761 A1

(12)

(43) Date of publication: 21.01.1987 Bulletin 1987/04 (21) Application number: 86900863.0 (22) Date of filing: 21.01.1986

(51) International Patent Classification (IPC):  B04B 1/ 08( . ) B04B 1/ 12( . ) (86) International application number: PCT/NO1986/000006 (87) International publication number: WO 1986/004270 (31.07.1986 Gazette 1986/17)

(84) Designated Contracting States: BE DE FR GB NL SE (30) Priority: 22.01.1985 NO 19850000266 (71) Applicant: KNUT MALMBERG A/S N-2800-Gjovik (NO)	(72) Inventor: KIND, Helge N-2800 Gjovik (NO) (74) Representative: Westwood, Edgar Bruce, et al  STEVENS, HEWLETT & PERKINS 5, Quality Court Chancery Lane London WC2A 1HZ London WC2A 1HZ (GB)