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CHENGDU FSCREEN SCI-TECH CO., LTD
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Chengdu, Sichuan, CN
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Patent Application
FRESNEL LENS MOLD AND MANUFACTURING METHOD THEREFOR, AND MANUFACTUR...
Publication number
20230046945
Publication date
Feb 16, 2023
CHENGDU FSCREEN SCI-TECH CO., LTD
Yimin ZHANG
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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last 30 trademarks
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Trademark
98215997 - FSCREEN
Serial number
98215997
Registration number
7507490
Filing date
Oct 10, 2023
Chengdu Fscreen Sci-Tech Co.,Ltd.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments