Water shutoff in oil and gas wells,申请号US19390275998-传众专利搜索

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发明名称	Water shutoff in oil and gas wells
摘要
申请公布号	US2229177(A)	申请公布日期	1941.01.21
申请号	US19390275998	申请日期	1939.05.26
申请人	GULF RESEARCH & DEVELOPMENT COMPANY	发明人	KENNEDY HARVEY T.;TEPLITZ ABRAHAM J.
分类号	C09K8/50	主分类号	C09K8/50
代理机构		代理人
主权项
地址

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