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经营范围
发明名称
CONTINUOUS MINING MACHINE
摘要
申请公布号
CA813738(A)
申请公布日期
1969.05.27
申请号
CAD813738
申请日期
申请人
NATIONAL MINE SERVICE COMPANY
发明人
RICHARD A. BUTLER, SR.;JERRY KARLOVSKY, JR.
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主分类号
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代理人
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