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发明名称
Base-exchanging filter material
摘要
申请公布号
US1915894(A)
申请公布日期
1933.06.27
申请号
US19290414828
申请日期
1929.12.17
申请人
AAGE KRUGER SVEND
发明人
KRUGER SVEND AAGE
分类号
C01B33/46
主分类号
C01B33/46
代理机构
代理人
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