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发明名称
Cutter bar construction and adjustment therefor
摘要
申请公布号
US2730347(A)
申请公布日期
1956.01.10
申请号
US19520318042
申请日期
1952.10.31
申请人
THE CINCINNATI MINE MACHINERY COMPANY
发明人
BRUESTLE ARMIN O.;KREKELER CLAUDE B.
分类号
E21C25/30
主分类号
E21C25/30
代理机构
代理人
主权项
地址
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