(19)

(11)

EP 1 056 555 A1

(12)

(43) Date of publication: 06.12.2000 Bulletin 2000/49 (21) Application number: 99900888.1 (22) Date of filing: 18.01.1999

(51) International Patent Classification (IPC)7: B21D 11/20 (86) International application number: PCT/FI9900/026 (87) International publication number: WO 9936/202 (22.07.1999 Gazette 1999/29)

(84) Designated Contracting States: AT BE CH DE DK ES FI GB GR IE IT LI LU MC NL PT SE (30) Priority: 19.01.1998 FI 980100 (71) Applicant: Toivanen, Tuomo 70500 Kuopio (FI)	(72) Inventor: Toivanen, Tuomo 70500 Kuopio (FI) (74) Representative: Pitkänen, Hannu Alpo Antero  Pitkänen Oy,PL 1750 70211 Kuopio 70211 Kuopio (FI)