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发明名称
Purification of maleic anhydride
摘要
申请公布号
US2134531(A)
申请公布日期
1938.10.25
申请号
US19340742583
申请日期
1934.09.04
申请人
NATIONAL ANILINE & CHEMICAL COMPANY, INC.
发明人
PUNNETT ELTON B.
分类号
C07C51/573
主分类号
C07C51/573
代理机构
代理人
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地址
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