Method of desanding rotary mud,申请号US19290351431-传众专利搜索

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发明名称	Method of desanding rotary mud
摘要
申请公布号	US1842372(A)	申请公布日期	1932.01.26
申请号	US19290351431	申请日期	1929.03.30
申请人	RAYMOND ALLISON JOHN	发明人	ALLISON JOHN RAYMOND
分类号	B03B1/00;E21B21/06	主分类号	B03B1/00
代理机构		代理人
主权项
地址

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