(19)

(11)

EP 1 133 609 A1

(12)

(43) Date of publication: 19.09.2001 Bulletin 2001/38 (21) Application number: 99959345.2 (22) Date of filing: 23.11.1999

(51) International Patent Classification (IPC)7: E04C 3/09, E04C 3/32 (86) International application number: PCT/EP9909/172 (87) International publication number: WO 0031/358 (02.06.2000 Gazette 2000/22)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 25.11.1998 IT MI982556 (71) Applicant: Sistem Engineering S.R.L. 20133 Milan (IT)	(72) Inventor: PANTALONE, Antonio I-20133 Milan (IT) (74) Representative: De Gregori, Antonella et al Ing. Barzano & Zanardo Milano S.p.A.Via Borgonuovo 10 20121 Milano 20121 Milano (IT)