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发明名称
Improvements in or relating to amplifier valves for ultra-short waves
摘要
申请公布号
GB625901(A)
申请公布日期
1949.07.06
申请号
GB19460013735
申请日期
1946.05.06
申请人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
分类号
H01J25/76
主分类号
H01J25/76
代理机构
代理人
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地址
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