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Patents for Invention
2017-11-15

Li Huamin

ZL2013104132861.0

A Self-advancing Support with crawler and canopy

Sun Yuning

ZL2013104022344.0

A Fixed Sealer and Application Method of Gas Drainage

Ni Xiaoming

ZL2012103993996.0

A Simulation Device for the State and Effect of Air and Water in the Methane Drainage Well

Guo Wenbing

ZL201210072303.5

A Wongawilli Strip Pillar Mining Method for Coal under Buildings

Xiong Zuqiang

ZL2013105666955.0

A Recipe and Make Method of Grouting and Filling Materials

Nan Hua

ZL2013100956913.0

A U Shape Installing Tool Used in Coal Mine

Wang Wen

ZL201410636612X

A Fireproof Filling Material for Caving Isolation

Liu Shaowei

ZL2014100348166.0

A Virtual Comprehensive Experiment Device for Bolting Force Test

Yuan Ruifu

ZL2014107743607.0

A Gob-side Entry Retaining Method Avoiding Coal Dynamic Pressure

Li Dingqi

ZL201210331887.3

A Hydro-extraction Method for Ultrathin and Virtual Protection Layer of Coal Mine

Chen Xiaoxiang

ZL2012100084347.0

A Fast and Safe Lining Support for Caving Region

Wang Yonglong

ZL2013104584676.0

A Drilling Design Method for Outburst Coal

Guo Baohua

ZL201210102425.4

A Pressurizing and Outburst Prevention Device for Excavation Face

Wang Cheng

ZL2014102613467.0

Segmented Cooling Device and Cooling Method for Hot Entry Excavation of Coal Mine

Zhang Sheng

ZL201410078343X

Device and Method of Studying Bolting Force Under Conditions of Water Flowing and Penetrating

Han Ying

ZL2013101357613.0

Device and Method Testing Flowing of Methane in the wall of Hole



       
       

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