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发明名称
摘要
申请公布号
BE739196(A)
申请公布日期
1970.03.23
申请号
BED739196
申请日期
1969.09.22
申请人
发明人
分类号
C07C7/171
主分类号
C07C7/171
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代理人
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地址
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