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Inventor
ZHANG LI'NAN
CN
2 patents
Patents
2 patents
US11242230B2
Feb 8, 2022
Mine explosion-isolating hoisting device with built-in type permanent magnet motor
UNIV TAIYUAN TECHNOLOGY
1 citations
53
US11299378B2
Apr 12, 2022
Double-drum intermediate gear linkage winding type hoisting system
UNIV TAIYUAN TECHNOLOGY
0 citations
45