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发明名称
VERFAHREN ZUR AUFBEREITUNG VON ROHEN OXYMETHYLENPOLYMEREN
摘要
申请公布号
DE1963402(B2)
申请公布日期
1977.10.06
申请号
DE19691963402
申请日期
1969.12.18
申请人
发明人
分类号
C08G2/28;(IPC1-7):C08G2/28
主分类号
C08G2/28
代理机构
代理人
主权项
地址
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