Title:
METHOD FOR CONVERTING ELECTRIC SIGNALS INTO SOUND WAVES AND DEVICE FOR REALISING THE SAME
Document Type and Number:
WIPO Patent Application WO1998030062
Kind Code:
A3
Inventors:
KONDRATIEV ANDREI VALENTINOVIC (RU)
Application Number:
PCT/RU1997/000417
Publication Date:
September 03, 1998
Filing Date:
December 23, 1997
Export Citation:
Assignee:
KONDRATIEV ANDREI VALENTINOVIC (RU)
International Classes:
H04R; (IPC1-7): H04R/
Foreign References:
| SU1695527A1 | 1991-11-30 | |||
| SU1264376A1 | 1986-10-15 | |||
| DE3830783C1 | 1990-03-15 | |||
| US5610991A | 1997-03-11 | |||
| GB2239577A | 1991-07-03 |
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