Subsurface pipe cutter for drill pipes,申请号US19520317201-传众专利搜索

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发明名称	Subsurface pipe cutter for drill pipes
摘要
申请公布号	US2695449(A)	申请公布日期	1954.11.30
申请号	US19520317201	申请日期	1952.10.28
申请人	CHAUVIN WILLIE L	发明人	CHAUVIN WILLIE L.
分类号	B23D21/14;E21B29/00	主分类号	B23D21/14
代理机构		代理人
主权项
地址

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