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经营范围
发明名称
Preparation of ethylene diamines
摘要
申请公布号
US2519803(A)
申请公布日期
1950.08.22
申请号
US19460645654
申请日期
1946.02.05
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
WEBER ARTHUR GEORGE;BELL CLARENCE D.
分类号
C07C209/48
主分类号
C07C209/48
代理机构
代理人
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