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发明名称
Boring type continuous mining machine
摘要
申请公布号
US3140121(A)
申请公布日期
1964.07.07
申请号
US19620193405
申请日期
1962.05.09
申请人
GOODMAN MANUFACTURING COMPANY
发明人
GONSKI JOSEPH
分类号
E21C27/12
主分类号
E21C27/12
代理机构
代理人
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