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发明名称
Filter powder
摘要
申请公布号
US2390490(A)
申请公布日期
1945.12.11
申请号
US19450591625
申请日期
1945.05.02
申请人
FLORIDIN COMPANY
发明人
ATWELL THOMAS C.
分类号
B01J20/12
主分类号
B01J20/12
代理机构
代理人
主权项
地址
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