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Yang LIU
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Meishan, Sichuan, CN
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Patents Grants
last 30 patents
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Patent Grant
Detachable double-locking riveting dismounting method and pulling r...
Patent number
10,081,049
Issue date
Sep 25, 2018
MEISHAN CRRC FASTENING SYSTEM CO., LTD.
Yu Liu
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
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Patent Application
Detachable Double-locking Riveting Dismounting Method and Pulling R...
Publication number
20160325340
Publication date
Nov 10, 2016
MEISHAN CRRC FASTENING SYSTEM CO., LTD.
Yu LIU
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...