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发明名称
摘要
申请公布号
JPS6455480(U)
申请公布日期
1989.04.05
申请号
JP19870151451U
申请日期
1987.10.02
申请人
发明人
分类号
G04B27/04;G04B29/02;(IPC1-7):G04B27/04
主分类号
G04B27/04
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