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Shenzhen, CN
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last 30 patents
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Patent Grant
Audio input/output device
Patent number
D893457
Issue date
Aug 18, 2020
SHENZHEN GRANDSUN ELECTRONIC CO., LTD.
Shao Wei
D14 - Recording, communication, or information retrieval equipment
Information
Patent Grant
Virtual reality headset
Patent number
D859406
Issue date
Sep 10, 2019
SHENZHEN GRANDSUN ELECTRONIC CO., LTD.
Shao Wei
D14 - Recording, communication, or information retrieval equipment