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John Simon Davies
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Kwai Chung, HK
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last 30 patents
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Patent Grant
Loudspeaker
Patent number
D770414
Issue date
Nov 1, 2016
GP Acoustics International Limited
John Simon Davies
D14 - Recording, communication, or information retrieval equipment
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Patent Grant
Headphone
Patent number
D704162
Issue date
May 6, 2014
GP Acoustics International Limited
John Simon Davies
D14 - Recording, communication, or information retrieval equipment