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发明名称
Bit mounting for cutter chains
摘要
申请公布号
US2720392(A)
申请公布日期
1955.10.11
申请号
US19530355740
申请日期
1953.05.18
申请人
THE CINCINNATI MINE MACHINERY COMPANY
发明人
CARTLIDGE JOHN R.
分类号
E21C35/193
主分类号
E21C35/193
代理机构
代理人
主权项
地址
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