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发明名称
MINING MACHINE ROTARY CUTTING DEVICE
摘要
申请公布号
CA666471(A)
申请公布日期
1963.07.09
申请号
CAD666471
申请日期
申请人
NATIONAL MINE SERVICE COMPANY
发明人
WILBUR D. ROBBINS
分类号
主分类号
代理机构
代理人
主权项
地址
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