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经营范围
发明名称
Centralized radio system
摘要
申请公布号
US2076731(A)
申请公布日期
1937.04.13
申请号
US19340747843
申请日期
1934.10.11
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
KRUEGER ERNST
分类号
H03H7/48;H04H20/77
主分类号
H03H7/48
代理机构
代理人
主权项
地址
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