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发明名称
Hydraulically driven vehicle and cable reel motor control means
摘要
申请公布号
US2562881(A)
申请公布日期
1951.08.07
申请号
US19450578084
申请日期
1945.02.15
申请人
JOY MANUFACTURING COMPANY
发明人
BALDWIN CLYDE P.;VANDERZEE HARRY H.
分类号
E21C31/00
主分类号
E21C31/00
代理机构
代理人
主权项
地址
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