James East

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Kowloon Tong, HK

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Patents Grantslast 30 patents

Information Patent Grant
Audio apparatus
- Patent number 8,842,870
- Issue date Sep 23, 2014
- NVF Tech Ltd.
- James East
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
AUDIO APPARATUS
- Publication number 20120237075
- Publication date Sep 20, 2012
- New Transducers Limited
- James East
- H04 - ELECTRIC COMMUNICATION TECHNIQUE