Control of oil well production,申请号US19550544421-传众专利搜索

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发明名称	Control of oil well production
摘要
申请公布号	US2845125(A)	申请公布日期	1958.07.29
申请号	US19550544421	申请日期	1955.11.02
申请人	SINCLAIR OIL & GAS COMPANY	发明人	TRUMAN PAUL W.
分类号	E21B43/12;E21B43/34	主分类号	E21B43/12
代理机构		代理人
主权项
地址

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