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发明名称
摘要
申请公布号
GB1238934(A)
申请公布日期
1971.07.14
申请号
GBD1238934
申请日期
1968.06.17
申请人
发明人
分类号
C08F22/04;C08F236/04
主分类号
C08F22/04
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