Controlling high-pressure wells while drilling,申请号US19650430918-传众专利搜索

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发明名称	Controlling high-pressure wells while drilling
摘要
申请公布号	US3354970(A)	申请公布日期	1967.11.28
申请号	US19650430918	申请日期	1965.02.08
申请人	PAN AMERICAN PETROLEUM CORPORATION	发明人	LUMMUS JAMES L.
分类号	E21B21/08;E21B21/10	主分类号	E21B21/08
代理机构		代理人
主权项
地址

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