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发明名称
Schaltungsanordnung für selbsttätige Fernsprechanlagen, insbesondere Nebenstellenanlagen.
摘要
申请公布号
AT126369(B)
申请公布日期
1932.01.25
申请号
ATD126369
申请日期
1929.02.27
申请人
TELEFONAKTIEBOLAGET L. M. ERICSSON
发明人
分类号
主分类号
代理机构
代理人
主权项
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