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发明名称
Schaltungsanordnung zur Einleitung der zum Aufbau hochwertiger Verbindungen in Fernsprechanlagen erforderlichen Sonderschaltvorgaenge
摘要
申请公布号
DE830530(C)
申请公布日期
1952.02.04
申请号
DE1948P018242D
申请日期
1948.10.15
申请人
SIEMENS & HALSKE A.G.
发明人
LANGER MAX
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
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