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发明名称
摘要
申请公布号
JPS63166097(U)
申请公布日期
1988.10.28
申请号
JP19870058913U
申请日期
1987.04.17
申请人
发明人
分类号
G09B19/00;A47K10/16;A47K10/22;(IPC1-7):A47K10/22
主分类号
G09B19/00
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