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经营范围
发明名称
Amplifier
摘要
申请公布号
US2116719(A)
申请公布日期
1938.05.10
申请号
US19340748635
申请日期
1934.10.17
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
WEHNERT WALDEMAR
分类号
H04B1/16
主分类号
H04B1/16
代理机构
代理人
主权项
地址
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