Artesian well control device,申请号US19580759211-传众专利搜索

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发明名称	Artesian well control device
摘要
申请公布号	US3039533(A)	申请公布日期	1962.06.19
申请号	US19580759211	申请日期	1958.09.05
申请人	LACEY EDWARD H	发明人	LACEY EDWARD H.
分类号	E21B33/12	主分类号	E21B33/12
代理机构		代理人
主权项
地址

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