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经营范围
发明名称
Air purifier
摘要
申请公布号
US2096851(A)
申请公布日期
1937.10.26
申请号
US19340730401
申请日期
1934.06.13
申请人
E. D. BULLARD COMPANY
发明人
FRICKE WILLIAM JOHN
分类号
B01D46/12
主分类号
B01D46/12
代理机构
代理人
主权项
地址
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