Dust collecting element and process for making the same,申请号US19340752232-传众专利搜索

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发明名称	Dust collecting element and process for making the same
摘要
申请公布号	US2224172(A)	申请公布日期	1940.12.10
申请号	US19340752232	申请日期	1934.11.09
申请人		发明人
分类号	B01D39/20;B01D46/00;B01D46/24;B21F1/00;B21F27/18	主分类号	B01D39/20
代理机构		代理人
主权项
地址

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