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发明名称
摘要
申请公布号
JPH0375798(U)
申请公布日期
1991.07.30
申请号
JP19890134468U
申请日期
1989.11.21
申请人
发明人
分类号
G09B1/16;A63H33/00;A63H33/08;(IPC1-7):A63H33/08
主分类号
G09B1/16
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代理人
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