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摘要
申请公布号
US1862659(A)
申请公布日期
1932.06.14
申请号
US19300443638
申请日期
1930.04.12
申请人
CHARLES CHRISTOFFERSON
发明人
CHRISTOFFERSON CHARLES
分类号
B01D46/12
主分类号
B01D46/12
代理机构
代理人
主权项
地址
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