Apparatus for treating drilling mud,申请号US19520296396-传众专利搜索

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发明名称	Apparatus for treating drilling mud
摘要
申请公布号	US2748884(A)	申请公布日期	1956.06.05
申请号	US19520296396	申请日期	1952.06.30
申请人	SALT WATER CONTROL, INC.	发明人	ERWIN RANSOME W.
分类号	E21B21/06	主分类号	E21B21/06
代理机构		代理人
主权项
地址

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