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发明名称
Mining machine rotary cutter bar
摘要
申请公布号
US3409331(A)
申请公布日期
1968.11.05
申请号
US19680701523
申请日期
1968.01.05
申请人
THE CINCINNATI MINE MACHINERY CO.
发明人
KREKELER CLAUDE B.
分类号
E21C25/10;E21C27/22
主分类号
E21C25/10
代理机构
代理人
主权项
地址
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