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发明名称
摘要
申请公布号
BE701764(A)
申请公布日期
1968.01.24
申请号
BED701764
申请日期
1967.07.24
申请人
发明人
分类号
B23B5/00;C07D275/02;C07D295/088;C07D295/21;C07D499/00
主分类号
B23B5/00
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