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发明名称
摘要
申请公布号
JPS59116879(U)
申请公布日期
1984.08.07
申请号
JP19830011385U
申请日期
1983.01.28
申请人
发明人
分类号
G04B35/00;G04B19/02;G04B33/10;(IPC1-7):G04B35/00
主分类号
G04B35/00
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