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经营范围
发明名称
Improvements in secondary emission electron multipliers
摘要
申请公布号
GB492055(A)
申请公布日期
1938.09.14
申请号
GB19370009732
申请日期
1937.04.06
申请人
THE GENERAL ELECTRIC COMPANY LIMITED;WILLIAM HERBERT ALDOUS;LESLIE RONALD GEORGE TRELOAR
发明人
分类号
H01J9/12
主分类号
H01J9/12
代理机构
代理人
主权项
地址
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