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(11)

EP 1 303 375 A1

(12)

(43) Date of publication: 23.04.2003 Bulletin 2003/17 (21) Application number: 01925405.1 (22) Date of filing: 08.03.2001

(51) International Patent Classification (IPC)7: B23B 39/16, B23B 39/22 (86) International application number: PCT/EP0102/636 (87) International publication number: WO 0200/5994 (24.01.2002 Gazette 2002/04)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR (30) Priority: 13.07.2000 IT MI000157 (71) Applicant: C.M.B. Costruzioni Meccaniche Besana S.R.L. 20121 Milano (IT)	(72) Inventors: BESANA, Annibale I-21014 Laveno-Mombello (IT) STANCO, Domenico I-21038 Leggiuno (IT) (74) Representative: Dosterschill, Peter, Dr.  Petra, Zieger & KollegenPatentanwälteHerzog-Ludwig-Strasse 18 85570 Markt Schwaben 85570 Markt Schwaben (DE)