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发明名称
Schaltungsanordnung fuer Fernsprech-Nebenstellenanlagen mit Waehlerbetrieb
摘要
申请公布号
DE733909(C)
申请公布日期
1943.04.05
申请号
DE1935N038727D
申请日期
1935.10.16
申请人
TELEFONBAU UND NORMALZEIT G.M.B.H.
发明人
分类号
H04M5/12;H04M7/06
主分类号
H04M5/12
代理机构
代理人
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地址
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