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发明名称
摘要
申请公布号
JPS5647588(U)
申请公布日期
1981.04.27
申请号
JP19790130193U
申请日期
1979.09.19
申请人
发明人
分类号
G09G5/02;G09G1/06;G09G1/28;(IPC1-7):G09G1/06
主分类号
G09G5/02
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代理人
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