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发明名称
Schaltungsanordnung fuer Fernsprechnebenstellenanlagen
摘要
申请公布号
DE717331(C)
申请公布日期
1942.02.11
申请号
DE1940S141595D
申请日期
1940.07.10
申请人
SIEMENS & HALSKE AG.
发明人
TATZL HANS
分类号
H04M5/12
主分类号
H04M5/12
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代理人
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