Screen for oil wells,申请号US19350014233-传众专利搜索

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发明名称	Screen for oil wells
摘要
申请公布号	US2046459(A)	申请公布日期	1936.07.07
申请号	US19350014233	申请日期	1935.04.02
申请人	EDWARD E. JOHNSON, INCORPORATED	发明人	JOHNSON EDWARD E.
分类号	B01D29/15;E21B43/08	主分类号	B01D29/15
代理机构		代理人
主权项
地址

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