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经营范围
发明名称
Automatic air filter
摘要
申请公布号
US2144451(A)
申请公布日期
1939.01.17
申请号
US19360074307
申请日期
1936.04.14
申请人
STAYNEW FILTER CORPORATION
发明人
DOLLINGER LEWIS L.
分类号
B01D46/18
主分类号
B01D46/18
代理机构
代理人
主权项
地址
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