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发明名称
DISPOSITIVO PER SVOLGERE OPERAZIONI DI COMMUTAZIONE IN IMPIANTI TELEFONICI, SPECIE IN IMPIANTI TELEFONICI DERIVATI, CON POSTO D'OPERATRICE.
摘要
申请公布号
IT7921966(D0)
申请公布日期
1979.04.19
申请号
IT19790021966
申请日期
1979.04.19
申请人
SIEMENS AKTIENGESELLSCHAFT
发明人
分类号
H04M3/60;(IPC1-7):H04M/
主分类号
H04M3/60
代理机构
代理人
主权项
地址
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