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发明名称
Expandable bed filter and method
摘要
申请公布号
US3410055(A)
申请公布日期
1968.11.12
申请号
US19660589433
申请日期
1966.10.25
申请人
THE DUCON COMPANY, INC.
发明人
ZENZ FREDERICK A.
分类号
B01D46/30;B01D46/32;B01J8/00
主分类号
B01D46/30
代理机构
代理人
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地址
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