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经营范围
发明名称
Filtering apparatus and process
摘要
申请公布号
US1948947(A)
申请公布日期
1934.02.27
申请号
US19290405601
申请日期
1929.11.08
申请人
FILTRATION ENGINEERS, INC.
发明人
O'KEEFE GEORGE W.
分类号
B01D33/00
主分类号
B01D33/00
代理机构
代理人
主权项
地址
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