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发明名称
MIKROFONVERSTAERKER, INSBESONDERE FUER FERNSPRECHANLAGEN
摘要
申请公布号
DE2850792(A1)
申请公布日期
1980.06.04
申请号
DE19782850792
申请日期
1978.11.23
申请人
SIEMENS AG
发明人
KRAEMER,HORST,DIPL.-ING.
分类号
H03F3/187;H03F3/45;H04M1/60;(IPC1-7):H03F1/30;H03F3/04;H03F3/68
主分类号
H03F3/187
代理机构
代理人
主权项
地址
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