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发明名称
Method for the manufacture of quaternary nitrogen compounds
摘要
申请公布号
US2445319(A)
申请公布日期
1948.07.20
申请号
US19400330356
申请日期
1940.04.18
申请人
AMERICAN HYALSOL CORPORATION
发明人
ENGELBRECHT HEINZ-JOACHIM
分类号
C07D213/20;D06M13/322
主分类号
C07D213/20
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代理人
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