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发明名称
Catalysts and preparation thereof
摘要
申请公布号
US2320799(A)
申请公布日期
1943.06.01
申请号
US19400317770
申请日期
1940.02.07
申请人
RUTHRUFF ROBERT F
发明人
RUTHRUFF ROBERT F.
分类号
B01J21/16
主分类号
B01J21/16
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代理人
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