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发明名称
Filtration medium
摘要
申请公布号
US1897976(A)
申请公布日期
1933.02.14
申请号
US19270235509
申请日期
1927.11.25
申请人
AMERICAN AIR FILTER COMPANY, INC.
发明人
BIRKHOLZ HANS E.
分类号
B01D46/00
主分类号
B01D46/00
代理机构
代理人
主权项
地址
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