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David Biggs
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Cornwall, GB
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last 30 patents
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Patent Grant
Audio equipment
Patent number
D745491
Issue date
Dec 15, 2015
Allen & Heath Limited
Glenn Rogers
D14 - Recording, communication, or information retrieval equipment
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Patent Grant
Audio equipment
Patent number
D744983
Issue date
Dec 8, 2015
Allen & Heath Limited
Glenn Rogers
D14 - Recording, communication, or information retrieval equipment