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经营范围
发明名称
Absorption apparatus
摘要
申请公布号
US2974936(A)
申请公布日期
1961.03.14
申请号
US19570660791
申请日期
1957.05.22
申请人
KOPPERS COMPANY, INC.
发明人
ACKEREN JOSEPH VAN;HELM EDWARD J.
分类号
B01D53/18
主分类号
B01D53/18
代理机构
代理人
主权项
地址
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