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发明名称
Modulation system
摘要
申请公布号
US2248083(A)
申请公布日期
1941.07.08
申请号
US19390279091
申请日期
1939.06.14
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
HOFER RUDOLF
分类号
H03F1/06
主分类号
H03F1/06
代理机构
代理人
主权项
地址
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