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发明名称
Bubble cap assembly for gas or vapor and liquid contact apparatus
摘要
申请公布号
US2480862(A)
申请公布日期
1949.09.06
申请号
US19460645858
申请日期
1946.02.06
申请人
JOHNSON LEON H
发明人
JOHNSON LEON H.
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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