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经营范围
发明名称
Perfectionnements aux filtres pour ondes décimétriques
摘要
申请公布号
FR888760(A)
申请公布日期
1943.12.22
申请号
FRD888760
申请日期
1942.12.04
申请人
TELEFUNKEN GESELLSCHAFT FU:R DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
分类号
H01P1/202
主分类号
H01P1/202
代理机构
代理人
主权项
地址
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