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发明名称
摘要
申请公布号
JPS5735686(U)
申请公布日期
1982.02.25
申请号
JP19800112016U
申请日期
1980.08.07
申请人
发明人
分类号
G04B37/00;(IPC1-7):G04B37/00
主分类号
G04B37/00
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代理人
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