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发明名称
Filter construction
摘要
申请公布号
US2420414(A)
申请公布日期
1947.05.13
申请号
US19430503262
申请日期
1943.09.21
申请人
BRIGGS SOUTHWICK W
发明人
BRIGGS SOUTHWICK W.
分类号
B01D27/06
主分类号
B01D27/06
代理机构
代理人
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地址
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