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发明名称
METHOD OF OBTAINING FOAMED UREA MATERIALS
摘要
申请公布号
PL145679(B1)
申请公布日期
1988.10.31
申请号
PL19850255965
申请日期
1985.10.26
申请人
发明人
分类号
C08G12/40;C08J;C08J9/06;(IPC1-7):C08J9/06
主分类号
C08G12/40
代理机构
代理人
主权项
地址
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