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发明名称
Mining and loading machine
摘要
申请公布号
US2630308(A)
申请公布日期
1953.03.03
申请号
US19480055953
申请日期
1948.10.22
申请人
THE JEFFREY MANUFACTURING COMPANY
发明人
MOON STERLING C.
分类号
E21C27/12
主分类号
E21C27/12
代理机构
代理人
主权项
地址
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