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发明名称
Schaltungsanordnung für selbsttätige und halbselbsttätige Fernsprechämter.
摘要
申请公布号
AT119418(B)
申请公布日期
1930.10.25
申请号
ATD119418
申请日期
1929.05.03
申请人
VEREINIGTE TELEPHON- UND TELEGRAPHENFABRIKS-AKTIEN-GESELLSCHAFT CZEIJA, NISSL & CO.
发明人
分类号
主分类号
代理机构
代理人
主权项
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