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发明名称
SPOSOB OTRZYMYWANIA PIANEK POLIURETANOWYCH
摘要
申请公布号
PL97737(B1)
申请公布日期
1978.03.30
申请号
PL19750180131
申请日期
1975.05.03
申请人
发明人
分类号
C08G18/20;(IPC1-7):C08G18/20
主分类号
C08G18/20
代理机构
代理人
主权项
地址
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