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发明名称
摘要
申请公布号
BE688541(A)
申请公布日期
1967.04.20
申请号
BED688541
申请日期
1966.10.20
申请人
发明人
分类号
C07J1/00;C07J75/00
主分类号
C07J1/00
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代理人
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地址
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