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发明名称
Improvements in exchange plates for columns for contacting liquids and gases or vapours
摘要
申请公布号
GB721296(A)
申请公布日期
1955.01.05
申请号
GB19520005194
申请日期
1952.02.27
申请人
WALTER KITTEL
发明人
分类号
B01D3/20
主分类号
B01D3/20
代理机构
代理人
主权项
地址
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