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发明名称
DISPOSITIVO CIRCUITALE PER UN IMPIANTO DI COMMUTAZIONE A COMANDO INDIRETTO
摘要
申请公布号
IT1038363(B)
申请公布日期
1979.11.20
申请号
IT19750023623
申请日期
1975.05.22
申请人
SIEMENS AG
发明人
分类号
H04M3/42;H04Q3/54;H04Q3/545;(IPC1-7):H04N/
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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