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发明名称
Schaltungsanordnung fuer eine Fernsprechnebenstellenanlage mit Sprechstellen verschiedener Berechtigung
摘要
申请公布号
DE1138117(B)
申请公布日期
1962.10.18
申请号
DE1961S073596
申请日期
1961.04.21
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
SEHR WERNER
分类号
H04M3/38
主分类号
H04M3/38
代理机构
代理人
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地址
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