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发明名称
Motorized multiple drums for mining machine
摘要
申请公布号
US3290096(A)
申请公布日期
1966.12.06
申请号
US19630332129
申请日期
1963.12.20
申请人
WESTINGHOUSE AIR BRAKE COMPANY
发明人
STALKER KENNETH W.
分类号
E21C31/02
主分类号
E21C31/02
代理机构
代理人
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地址
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