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发明名称
摘要
申请公布号
JPS542257(Y2)
申请公布日期
1979.01.30
申请号
JP19740156843U
申请日期
1974.12.26
申请人
发明人
分类号
D01F9/32;D01F9/12;(IPC1-7):D01F9/12
主分类号
D01F9/32
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