(19)

(11)

EP 0 357 722 A1

(12)

(43) Date of publication: 14.03.1990 Bulletin 1990/11 (21) Application number: 89902371.0 (22) Date of filing: 10.02.1989

(51) International Patent Classification (IPC):  H04R 1/ 02( . ) H04R 1/ 28( . ) H04R 1/ 26( . ) (86) International application number: PCT/BR1989/000001 (87) International publication number: WO 1989/007875 (24.08.1989 Gazette 1989/20)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI NL SE (30) Priority: 10.02.1988 BR 19880000548 (71) Applicant: MAZUZA, George 04002-Sao Paulo, SP (BR)	(72) Inventor: MAZUZA, George 04002-Sao Paulo, SP (BR) (74) Representative: Darby, David Thomas, et al  Abel & Imray Northumberland House 303-306 High Holborn London WC1V 7LH London WC1V 7LH (GB)