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Bernd Selbach
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Eckental, DE
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last 30 patents
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Patent Grant
Circuit arrangement for establishing conference connections
Patent number
5,199,029
Issue date
Mar 30, 1993
U.S. Philips Corporation
Peter Hessler
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
Circuit arrangement for channel-specific processing of a multi-chan...
Patent number
5,172,393
Issue date
Dec 15, 1992
U.S. Philips Corporation
Peter Hessler
H04 - ELECTRIC COMMUNICATION TECHNIQUE