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经营范围
发明名称
Perfectionnements aux stations radiotéléphoniques
摘要
申请公布号
FR894136(A)
申请公布日期
1944.12.14
申请号
FRD894136
申请日期
1943.04.21
申请人
TELEFUNKEN GESELLSCHAFT FU:R DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
分类号
H04B3/20;H04B7/005
主分类号
H04B3/20
代理机构
代理人
主权项
地址
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