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申请公布号
JPS5532449(U)
申请公布日期
1980.03.01
申请号
JP19780115587U
申请日期
1978.08.23
申请人
发明人
分类号
G04C21/02;G04C21/20;(IPC1-7):G04C21/20
主分类号
G04C21/02
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