(19)

(11)

EP 0 633 816 A1

(12)

(43) Date of publication: 18.01.1995 Bulletin 1995/03 (21) Application number: 92908404.0 (22) Date of filing: 03.04.1992

(51) International Patent Classification (IPC):  B21F 27/ 10( . ) (86) International application number: PCT/FI1992/000102 (87) International publication number: WO 1993/019868 (14.10.1993 Gazette 1993/25)

(84) Designated Contracting States: AT BE DE ES FR GB IT NL SE (71) Applicant: OLLILAINEN, Pertti Tapio SF-00760 Helsinki (FI)	(72) Inventor: OLLILAINEN, Pertti Tapio SF-00760 Helsinki (FI) (74) Representative: Wennborg, Göte, et al  Kransell & Wennborg AB Box 27834 S-115 93 Stockholm S-115 93 Stockholm (SE)