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发明名称
Improvements in or relating to electron discharge apparatus incorporating high-frequency resonators
摘要
申请公布号
GB579156(A)
申请公布日期
1946.07.25
申请号
GB19400012519
申请日期
1940.08.02
申请人
STANDARD TELEPHONES AND CABLES LIMITED;JOHN HEAVER FREMLIN
发明人
分类号
H01J25/26
主分类号
H01J25/26
代理机构
代理人
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