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发明名称
Schaltungsanordnung fuer Fernsprechanlagen mit einer sprachgesteuerten Rueckkopplungssperre
摘要
申请公布号
DE1156113(B)
申请公布日期
1963.10.24
申请号
DE1958S057144
申请日期
1958.02.28
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
MARTIN DIPL.-ING. ERWIN
分类号
H04M9/08
主分类号
H04M9/08
代理机构
代理人
主权项
地址
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