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发明名称
摘要
申请公布号
JPS6260397(U)
申请公布日期
1987.04.14
申请号
JP19850152385U
申请日期
1985.10.04
申请人
发明人
分类号
G09B19/10;B44C1/28;(IPC1-7):B44C1/28
主分类号
G09B19/10
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