Active-suspension double-drive crown block
SHAN XILIN, MA LIMEI, LIU QIANG, WU BO, SUI JINLING, WU LIZHI, ZHANG SONGMING, ZHAO YONG, HAN MINGZHONG
Year of Publication 07.09.2018
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Year of Publication 07.09.2018
Patent
Passive suspension double-drive low-load crown block
SHAN XILIN, MA LIMEI, LIU QIANG, WU BO, SUI JINLING, WU LIZHI, ZHANG SONGMING, ZHAO YONG, HAN MINGZHONG
Year of Publication 04.09.2018
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Year of Publication 04.09.2018
Patent