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发明名称
Schaltungsanordnung zur Pruefung von Anschlussleitungen in Fernsprechanlagen
摘要
申请公布号
DE655838(C)
申请公布日期
1938.01.24
申请号
DE1932S104857D
申请日期
1932.06.04
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
TATZL HANS
分类号
H04M3/30
主分类号
H04M3/30
代理机构
代理人
主权项
地址
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