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发明名称
SEMAFORO
摘要
申请公布号
BR5500838(U)
申请公布日期
1977.04.05
申请号
BR19750000838U
申请日期
1975.08.20
申请人
INST NAC DE TEC INT
发明人
DE RESENDE M
分类号
G08G1/095;(IPC1-7):G08G1/09
主分类号
G08G1/095
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