Tool for severing and milling away a section of casing in the bore of a well,申请号US19510248702-传众专利搜索

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发明名称	Tool for severing and milling away a section of casing in the bore of a well
摘要
申请公布号	US2709490(A)	申请公布日期	1955.05.31
申请号	US19510248702	申请日期	1951.09.28
申请人	A-1 BIT & TOOL COMPANY, INCORPORATED	发明人	TRIMBLE HARRY C.;WOELFEL ALBERT E.
分类号	E21B29/00;E21B29/06	主分类号	E21B29/00
代理机构		代理人
主权项
地址

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