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发明名称
Schaltungsanordnung für Gesellschaftleitungen in Fernmelde-, insbesondere Fernsprechanlagen.
摘要
申请公布号
AT155764(B)
申请公布日期
1939.03.25
申请号
ATD155764
申请日期
1937.09.20
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
DR. ING. BENEDIKT KUDRNA
分类号
主分类号
代理机构
代理人
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