Method for cementing and testing wells,申请号US19340725739-传众专利搜索

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发明名称	Method for cementing and testing wells
摘要
申请公布号	US2016919(A)	申请公布日期	1935.10.08
申请号	US19340725739	申请日期	1934.05.15
申请人	CHURCH WALTER L	发明人	CHURCH WALTER L.
分类号	E21B33/14;E21B41/00	主分类号	E21B33/14
代理机构		代理人
主权项
地址

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