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发明名称
Improvements in or relating to retroactive thermionic valve systems
摘要
申请公布号
GB398170(A)
申请公布日期
1933.09.01
申请号
GB19320006220
申请日期
1932.03.01
申请人
JAMES ROBINSON;BRITISH RADIOSTAT CORPORATION, LIMITED
发明人
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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