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发明名称	Filter
摘要
申请公布号	US1846168(A)	申请公布日期	1932.02.23
申请号	US19290385027	申请日期	1929.08.10
申请人	THE MINE AND SMELTER SUPPLY COMPANY	发明人	WEBB HENRY F.
分类号	B04B3/08	主分类号	B04B3/08
代理机构		代理人
主权项
地址

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