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Yuhua Liang
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Shenzhen Guangdong, CN
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Patents Grants
last 30 patents
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Patent Grant
Lens and an illumination device having the lens
Patent number
9,518,705
Issue date
Dec 13, 2016
Qihui Zhang
F21 - LIGHTING
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last 30 patents
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Patent Application
LENS AND AN ILLUMINATION DEVICE HAVING THE LENS
Publication number
20150043213
Publication date
Feb 12, 2015
OSRAM GMBH
Qihui Zhang
F21 - LIGHTING