Wang QUAN

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Patents Grantslast 30 patents

Information Patent Grant
Stowing method for goaf of potash salt ore
- Patent number 8,911,177
- Issue date Dec 16, 2014
- Sino-Agri Mining Investment Co., Ltd.
- Wang Quan
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
STOWING METHOD FOR GOAF OF POTASH SALT ORE
- Publication number 20130170912
- Publication date Jul 4, 2013
- Wang QUAN
- E21 - EARTH DRILLING MINING