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Frans A. Westra
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Eindhoven, NL
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last 30 patents
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Patent Grant
Method of and receiver for processing and reproducing a message
Patent number
5,724,644
Issue date
Mar 3, 1998
U.S. Philips Corporation
Derk J. C. Wassink
G08 - SIGNALLING
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Patent Grant
Loudspeaker system comprising a helmholtz resonator coupled to an a...
Patent number
5,261,006
Issue date
Nov 9, 1993
U.S. Philips Corporation
Joris A. M. Nieuwendijk
H04 - ELECTRIC COMMUNICATION TECHNIQUE