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发明名称
摘要
申请公布号
DD94892(A5)
申请公布日期
1973.01.05
申请号
DD19710160282
申请日期
1971.04.28
申请人
发明人
分类号
C01B33/193;C08K3/36;(IPC1-7):C08C11/10
主分类号
C01B33/193
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