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发明名称
Dispositif pour commutation à distance dans les postes amplificateurs sans opérateur
摘要
申请公布号
FR1066489(A)
申请公布日期
1954.06.08
申请号
FRD1066489
申请日期
1952.11.13
申请人
FELTEN & GUILLEAUME CARLSWERK A. G.
发明人
OSWALD DIPL. ING. FELIX
分类号
H04B1/74
主分类号
H04B1/74
代理机构
代理人
主权项
地址
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