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Katrin Huss
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Singapore, SG
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Patents Grants
last 30 patents
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Patent Grant
Wireless headphones and data transmission method
Patent number
8,897,841
Issue date
Nov 25, 2014
Sennheiser electronic GmbH & Co. KG
Axel Haupt
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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last 30 patents
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Patent Application
Wireless Headphones and Data Transmission Method
Publication number
20080194209
Publication date
Aug 14, 2008
Axel Haupt
H04 - ELECTRIC COMMUNICATION TECHNIQUE