(19)

(11)

EP 1 040 727 A2

(12)

(88) Date of publication A3: 22.07.1999 (43) Date of publication: 04.10.2000 Bulletin 2000/40 (21) Application number: 98955893.7 (22) Date of filing: 06.11.1998

(51) International Patent Classification (IPC)7: H04R 9/06 (86) International application number: PCT/IT9800/310 (87) International publication number: WO 9925/149 (20.05.1999 Gazette 1999/20)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI NL PT SE Designated Extension States: AL RO SI (30) Priority: 06.11.1997 IT BO970658 (71) Applicant: Macklaine di Francesco di Summa E C. S.N.C. 48022 Lugo (IT)	(72) Inventor: DI SUMMA, Francesco I-48022 Lugo (IT) (74) Representative: Boggio, Luigi et al STUDIO TORTA S.r.l.,Via Viotti, 9 10121 Torino 10121 Torino (IT)