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经营范围
发明名称
Improvements in or relating to light sensitive relay tubes
摘要
申请公布号
GB916078(A)
申请公布日期
1963.01.16
申请号
GB19600008635
申请日期
1960.03.11
申请人
ENGLISH ELECTRIC VALVE COMPANY LIMITED
发明人
SINCLAIR IAN ROBERTSON
分类号
主分类号
代理机构
代理人
主权项
地址
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