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发明名称
Teilnehmerleitungsuebertragung fuer Fernsprechanlagen mit Waehlbetrieb
摘要
申请公布号
DE1020380(B)
申请公布日期
1957.12.05
申请号
DE1956S048678
申请日期
1956.05.11
申请人
SIEMENS SOCIETA PER AZIONI
发明人
MONTE DR.-ING. GIORGIO DAL;SEMERIA DR.-ING. FRANCESCO
分类号
H04Q1/45;H04Q1/50
主分类号
H04Q1/45
代理机构
代理人
主权项
地址
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