(19)

(11)

EP 0 898 771 A1

(12)

(43) Date of publication: 03.03.1999 Bulletin 1999/09 (21) Application number: 97935552.0 (22) Date of filing: 30.07.1997

(51) International Patent Classification (IPC):  G08B 29/ 18( . ) (86) International application number: PCT/EP1997/004142 (87) International publication number: WO 1998/028724 (02.07.1998 Gazette 1998/26)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 24.12.1996 IT 1996TO01080 (71) Applicant: Tecno Alarm S.N.C. I-10156, Torino (IT)	(72) Inventors: TRUCCHI, Luciano I-10156 Torino (IT) NEGRO, Giovanni I-10156 Torino (IT) (74) Representative: Robba, Pierpaolo, et al  Interpatent, Via Caboto 35 10129 Torino 10129 Torino (IT)