Liu Xi Lin

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Pinned structural connection using a pin and plug arrangement
- Patent number 8,813,436
- Issue date Aug 26, 2014
- National-Oilwell Varco, L.P.
- Robert B. Donnally
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
PINNED STRUCTURAL CONNECTION USING A PIN AND PLUG ARRANGEMENT
- Publication number 20120066999
- Publication date Mar 22, 2012
- Robert B. Donnally
- E21 - EARTH DRILLING MINING