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发明名称
Schaltungsanordnung für selbsttätige und halbsebsttätige Fernsprechämter mit Stromstoßspeichern und rückwärtiger Stromstoßgabe.
摘要
申请公布号
AT119415(B)
申请公布日期
1930.10.25
申请号
ATD119415
申请日期
1929.04.15
申请人
VEREINIGTE TELEPHON- UND TELEGRAPHENFABRIKS-AKTIEN-GESELLSCHAFT CZEIJA, NISSL & CO.
发明人
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主分类号
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