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发明名称
POLYESTROL OBTAINING METHOD
摘要
申请公布号
PL151999(B1)
申请公布日期
1990.10.31
申请号
PL19870265247
申请日期
1987.04.17
申请人
发明人
分类号
C08G;C08G63/78;(IPC1-7):C08G63/78
主分类号
C08G
代理机构
代理人
主权项
地址
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