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法人/股东/高管

发明名称	Filter
摘要
申请公布号	US2035851(A)	申请公布日期	1936.03.31
申请号	US19340739560	申请日期	1934.08.13
申请人	WILLIAM B. HARGRAVES	发明人	WALKER ALBERT O.
分类号	B01D29/00;B01D37/02	主分类号	B01D29/00
代理机构		代理人
主权项
地址

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