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发明名称
摘要
申请公布号
JPS63135188(U)
申请公布日期
1988.09.05
申请号
JP19870026769U
申请日期
1987.02.25
申请人
发明人
分类号
G04B25/04;(IPC1-7):G04B25/04
主分类号
G04B25/04
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代理人
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