Apparatus for cementing well liners,申请号US19660525065-传众专利搜索

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发明名称	Apparatus for cementing well liners
摘要
申请公布号	US3364996(A)	申请公布日期	1968.01.23
申请号	US19660525065	申请日期	1966.02.04
申请人	BROWN OIL TOOLS, INC.	发明人	BROWN CICERO C.
分类号	E21B33/05;E21B33/14;E21B33/16;E21D5/012	主分类号	E21B33/05
代理机构		代理人
主权项
地址

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