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Patents Grants
last 30 patents
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Patent Grant
Electroluminescent earphone with bending-resistance and high-bright...
Patent number
9,445,186
Issue date
Sep 13, 2016
Shanghai Kerun Phosphor Technology Co., Ltd.
Yan Zheng
F21 - LIGHTING
Patents Applications
last 30 patents
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Patent Application
Electroluminescent earphone with bending-resistance and high-bright...
Publication number
20150326964
Publication date
Nov 12, 2015
Shanghai Kerun Phosphor Technology Co., Ltd.
Yan Zheng
F21 - LIGHTING