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发明名称
Amplifier device
摘要
申请公布号
US2183748(A)
申请公布日期
1939.12.19
申请号
US19360081203
申请日期
1936.05.22
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
KREIENFELD FRIEDRICH
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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