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发明名称
A process for concentrating urea solutions
摘要
申请公布号
GB832293(A)
申请公布日期
1960.04.06
申请号
GB19570038923
申请日期
1957.12.13
申请人
STAMICARBON N.V.
发明人
分类号
C07C273/16
主分类号
C07C273/16
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代理人
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