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申请公布号
JPS5854591(U)
申请公布日期
1983.04.13
申请号
JP19810150784U
申请日期
1981.10.09
申请人
发明人
分类号
G04B19/247;G04C21/02;G04C21/12;(IPC1-7):G04C21/02
主分类号
G04B19/247
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