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发明名称
摘要
申请公布号
DD98525(A5)
申请公布日期
1973.06.20
申请号
DD19710162964
申请日期
1971.08.04
申请人
发明人
分类号
C09B35/14;C09B45/28;C09B67/26;D21H21/28;(IPC1-7):C09B67/00;D21H1/46
主分类号
C09B35/14
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代理人
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