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EP 1 735 473 A1

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(43) Date of publication: 27.12.2006 Bulletin 2006/52 (21) Application number: 04727095.4 (22) Date of filing: 13.04.2004

(51) International Patent Classification (IPC):  C21D 1/40(2006.01) C22F 1/02(2006.01) C21D 9/62(2006.01) C21D 8/06(2006.01) (86) International application number: PCT/IT2004/000205 (87) International publication number: WO 2005/100617 (27.10.2005 Gazette 2005/43)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (71) Applicant: Officine Meccaniche di Lesmo S.p.A. 20050 Lesmo, MI (IT)	(72) Inventor: RECCHIA, Fabrizio I-20049 Concorezzo MI (IT) (74) Representative: Pizzoli, Antonio et al Società Italiana Brevetti S.p.A. Via Carducci 8 I-20123 Milano I-20123 Milano (IT)