Drilling fluid conditioning casing shoe,申请号US19610124175-传众专利搜索

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发明名称	Drilling fluid conditioning casing shoe
摘要
申请公布号	US3162246(A)	申请公布日期	1964.12.22
申请号	US19610124175	申请日期	1961.07.14
申请人	B & W INCORPORATED	发明人	WRIGHT KENNETH A.
分类号	E21B33/14;E21B37/02	主分类号	E21B33/14
代理机构		代理人
主权项
地址

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