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经营范围
发明名称
Improvements in or relating to sound reproduction from sound records and broadcast and other transmissions
摘要
申请公布号
GB382020(A)
申请公布日期
1932.10.20
申请号
GB19310024577
申请日期
1931.09.14
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
分类号
H04B1/66
主分类号
H04B1/66
代理机构
代理人
主权项
地址
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