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经营范围
发明名称
Air purifying device
摘要
申请公布号
US1977074(A)
申请公布日期
1934.10.16
申请号
US19310538411
申请日期
1931.05.19
申请人
MADSEN IRON WORKS
发明人
MADSEN MARTIN
分类号
B01D47/06
主分类号
B01D47/06
代理机构
代理人
主权项
地址
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