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发明名称
摘要
申请公布号
JPS562952(Y2)
申请公布日期
1981.01.22
申请号
JP19760129740U
申请日期
1976.09.27
申请人
发明人
分类号
D06F57/00;(IPC1-7):D06F57/00
主分类号
D06F57/00
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