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发明名称
KOPPLINGSANORDNING FOER TALSTYRDA HOEGTALARTELEFONER
摘要
申请公布号
FI53767(C)
申请公布日期
1978.07.10
申请号
FI19690001793
申请日期
1969.06.17
申请人
SIEMENS AG
发明人
LUEDER REINHARD
分类号
H04M9/10;(IPC1-7):H04M9/10
主分类号
H04M9/10
代理机构
代理人
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