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经营范围
发明名称
Process for concentrating nitric acid
摘要
申请公布号
US1922289(A)
申请公布日期
1933.08.15
申请号
US19300429308
申请日期
1930.02.18
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
HANDFORTH STANLEY L.
分类号
C01B21/44
主分类号
C01B21/44
代理机构
代理人
主权项
地址
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