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发明名称
Mining machine
摘要
申请公布号
US2329875(A)
申请公布日期
1943.09.21
申请号
US19410408537
申请日期
1941.08.27
申请人
GOODMAN MANUFACTURING COMPANY
发明人
CARTLIDGE FRANK
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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