Cutter bit and socket construction,申请号US19570690112-传众专利搜索

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发明名称	Cutter bit and socket construction
摘要
申请公布号	US3101933(A)	申请公布日期	1963.08.27
申请号	US19570690112	申请日期	1957.10.14
申请人	THE CINCINNATI MINE MACHINERY CO.	发明人	KREKELER CLAUDE B.
分类号	E21C35/18;E21C35/19;E21C35/193	主分类号	E21C35/18
代理机构		代理人
主权项
地址

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