Cutter chain joint,申请号US19580783823-传众专利搜索

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发明名称	Cutter chain joint
摘要
申请公布号	US3086404(A)	申请公布日期	1963.04.23
申请号	US19580783823	申请日期	1958.12.30
申请人	THE CINCINNATI MINE MACHINERY CO.	发明人	KREKELER CLAUDE B.
分类号	E21C25/36	主分类号	E21C25/36
代理机构		代理人
主权项
地址

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