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Waldemar Fruehauf
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Nurnberg, DE
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Patents Grants
last 30 patents
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Patent Grant
Circuit arrangement for the bidirectional operation of sound transd...
Patent number
8,126,154
Issue date
Feb 28, 2012
Continental Automotive GmbH
Rudolf Bierl
G01 - MEASURING TESTING
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last 30 patents
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Patent Application
Circuit arrangement for the bidirectional operation of a sound tran...
Publication number
20090290731
Publication date
Nov 26, 2009
CONTINENTAL AUTOMOTIVE GMBH
Rudolf Bierl
G01 - MEASURING TESTING