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发明名称
Improvements relating to extraction towers
摘要
申请公布号
GB708058(A)
申请公布日期
1954.04.28
申请号
GB19500023089
申请日期
1950.09.20
申请人
EUGEN LANGEN
发明人
分类号
B01D11/02;C13B10/10
主分类号
B01D11/02
代理机构
代理人
主权项
地址
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