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发明名称
摘要
申请公布号
JPS5515111(Y2)
申请公布日期
1980.04.07
申请号
JP19730118201U
申请日期
1973.10.11
申请人
发明人
分类号
G04B37/08;G04B37/00;G04C3/00;G04C10/00;(IPC1-7):G04B37/00
主分类号
G04B37/08
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