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发明名称
Improvements in electric discharge rectifying tubes
摘要
申请公布号
GB387944(A)
申请公布日期
1933.02.16
申请号
GB19320022574
申请日期
1932.08.12
申请人
STANDARD TELEPHONES AND CABLES, LIMITED;FRANK DOUGLAS GOODCHILD
发明人
分类号
H01J19/42
主分类号
H01J19/42
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