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发明名称
摘要
申请公布号
JPS5463653(U)
申请公布日期
1979.05.04
申请号
JP19770134568U
申请日期
1977.10.06
申请人
发明人
分类号
G04B37/11;G04B37/08;(IPC1-7):G04B37/08
主分类号
G04B37/11
代理机构
代理人
主权项
地址
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