(19)

(11)

EP 0 665 776 A1

(12)

(43) Date of publication: 09.08.1995 Bulletin 1995/32 (21) Application number: 93924253.0 (22) Date of filing: 25.10.1993

(51) International Patent Classification (IPC):  B21D 13/ 04( . ) (86) International application number: PCT/SE1993/000866 (87) International publication number: WO 1994/009925 (11.05.1994 Gazette 1994/11)

(84) Designated Contracting States: DE DK FR GB IT SE (30) Priority: 25.10.1992 SE 19920003130 (71) Applicant: AKV-ORTIC AB S-714 00 Kopparberg (SE)	(72) Inventor: INGVARSSON, Lars, Ingvar S-784 54 Borlänge (SE) (74) Representative: Brinck, Curt Edvard, et al  Ingenjörsfirma Curt Brinck Hedens gard 50 S-791 91 Falun S-791 91 Falun (SE)