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发明名称
摘要
申请公布号
JPH0248850(Y2)
申请公布日期
1990.12.21
申请号
JP19860031266U
申请日期
1986.03.06
申请人
发明人
分类号
G09B1/22;B42D15/00;B42F17/00;B42F17/30;B42F17/34;B65H1/24;B65H3/06;B65H29/36;B65H29/48;G09B1/28;G09B3/02;(IPC1-7):G09B3/02
主分类号
G09B1/22
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