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发明名称
摘要
申请公布号
CS177265(B1)
申请公布日期
1977.07.29
申请号
CS19730002347
申请日期
1973.04.03
申请人
发明人
分类号
D01F2/00;(IPC1-7):D01F2/00
主分类号
D01F2/00
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代理人
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