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发明名称
SCHALTUNGSANORDNUNG FUER SPRACHGESTEUERTE FREISPRECHGERAETE MIT VON DEN SPRECHSPANNUNGEN ABHAENGIGEM UNTERSCHIEDLICHEN DAEMPFUNGSHUB JE SPRACHKANAL UND JE SPRECHRICHTUNG
摘要
申请公布号
DE2439740(B2)
申请公布日期
1977.12.29
申请号
DE19742439740
申请日期
1974.08.19
申请人
发明人
分类号
H04M9/08;(IPC1-7):H04M9/10
主分类号
H04M9/08
代理机构
代理人
主权项
地址
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