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发明名称
Pegelregelung bei Lautfernsprechanlagen und Funksprechendeinrichtungen mit Rueckkopplungssperre
摘要
申请公布号
DE1094306(B)
申请公布日期
1960.12.08
申请号
DE1959S061420
申请日期
1959.01.21
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
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