(19)

(11)

EP 0 904 473 A1

(12)

(43) Date of publication: 31.03.1999 Bulletin 1999/13 (21) Application number: 97925264.0 (22) Date of filing: 20.05.1997

(51) International Patent Classification (IPC):  E05C 9/ 00( . ) E05B 15/ 10( . ) G07C 9/ 00( . ) E05B 47/ 06( . ) (86) International application number: PCT/IT1997/000115 (87) International publication number: WO 1997/044557 (27.11.1997 Gazette 1997/51)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 23.05.1996 IT 1996RM00358 29.11.1996 IT 1996RM00817 (71) Applicant: Potenziani, Paolo 00040 Roma (IT)	(72) Inventor: Potenziani, Paolo 00040 Roma (IT) (74) Representative: Sarpi, Maurizio, et al  Studio FERRARIO Via Collina, 36 00187 Roma 00187 Roma (IT)