(19)

(11)

EP 1 373 655 A1

(12)

(43) Date of publication: 02.01.2004 Bulletin 2004/01 (21) Application number: 02722659.6 (22) Date of filing: 19.03.2002

(51) International Patent Classification (IPC)7: E04F 11/18 (86) International application number: PCT/IT2002/000168 (87) International publication number: WO 2002/075073 (26.09.2002 Gazette 2002/39)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 21.03.2001 IT RN20010027 (71) Applicant: ERRETI S.r.l. I-48010 Bagnara di Romagna (Ravenna) (IT)	(72) Inventor: AVVANZINI, Ugo I-48010 Bagnara di Romagna (IT) (74) Representative: Grünecker, Kinkeldey, Stockmair & SchwanhäusserAnwaltssozietät  Maximilianstrasse 58 80538 München 80538 München (DE)