Process for cementing oil wells and the like,申请号US19400348399-传众专利搜索

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发明名称	Process for cementing oil wells and the like
摘要
申请公布号	US2319720(A)	申请公布日期	1943.05.18
申请号	US19400348399	申请日期	1940.07.30
申请人	INTERNATIONAL CEMENTERS, INC.	发明人	CHESNUT JOHN D.
分类号	E21B33/02	主分类号	E21B33/02
代理机构		代理人
主权项
地址

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