Peng Yue

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Drilling rig mast lift systems and methods
- Patent number 8,875,911
- Issue date Nov 4, 2014
- National-Oilwell Varco, L.P.
- Robert B. Donnally
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DRILLING RIG MAST LIFT SYSTEMS AND METHODS
- Publication number 20120047820
- Publication date Mar 1, 2012
- Robert B. Donnally
- E21 - EARTH DRILLING MINING