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发明名称
Schaltungsanordnung fuer umschaltbare transistorisierte Tonfrequenzsignalempfaenger in Fernsprechanlagen
摘要
申请公布号
DE1955856(A1)
申请公布日期
1971.03.11
申请号
DE19691955856
申请日期
1969.11.06
申请人
VEB FUNKWERK KOELLEDA
发明人
EHRLICH,WERNER,DIPL.-ING.
分类号
H04Q1/446;H04W88/02
主分类号
H04Q1/446
代理机构
代理人
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地址
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