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发明名称
Art of purifying petroleum sulphonic acids derived from the treatment of mineral oils with sulphuric acid
摘要
申请公布号
US1930488(A)
申请公布日期
1933.10.17
申请号
US19300495304
申请日期
1930.11.12
申请人
L. SONNEBORN, SONS, INC.
发明人
RAMAYYA KOLACHALA SEETA
分类号
C07C303/44;C07C309/62
主分类号
C07C303/44
代理机构
代理人
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地址
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