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Yaning Wu
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BEIJING, CN
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last 30 patents
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Patent Grant
Adjustable gas detection device for coal bed
Patent number
11,497,361
Issue date
Nov 15, 2022
Shu Tao
G01 - MEASURING TESTING
Patents Applications
last 30 patents
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Patent Application
ADJUSTABLE GAS DETECTION DEVICE FOR COAL BED
Publication number
20200315413
Publication date
Oct 8, 2020
China University of Geosciences (Beijing)
Shu Tao
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...