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发明名称
Filling body for gas-liquid contact towers
摘要
申请公布号
US2591497(A)
申请公布日期
1952.04.01
申请号
US19470772364
申请日期
1947.09.05
申请人
WALTER G. BERL
发明人
分类号
B01J19/30
主分类号
B01J19/30
代理机构
代理人
主权项
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