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Hong Kong, CN
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Patents Grants
last 30 patents
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Patent Grant
Kind of optical lens and a kind of miner's helmet lamp
Patent number
9,267,667
Issue date
Feb 23, 2016
Huizhou Light Engine Limited
Wenda Jiang
A42 - HEADWEAR
Patents Applications
last 30 patents
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Patent Application
KIND OF OPTICAL LENS AND A KIND OF MINER'S HELMET LAMP
Publication number
20150043222
Publication date
Feb 12, 2015
Huizhou Light Engine Limited
Wenda Jiang
F21 - LIGHTING