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Patent Searching and Data


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:
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Assignee:
KONDRATIEV ANDREI VALENTINOVIC (RU)
International Classes:
H04R; (IPC1-7): H04R/
Foreign References:
SU1695527A11991-11-30
SU1264376A11986-10-15
DE3830783C11990-03-15
US5610991A1997-03-11
GB2239577A1991-07-03
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