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经营范围
发明名称
Improvements in or relating to indicators, annunciators and other changing signs
摘要
申请公布号
GB897306(A)
申请公布日期
1962.05.23
申请号
GB19580038128
申请日期
1958.11.26
申请人
THE ENGLISH ELECTRIC COMPANY LIMITED
发明人
PRESCOTT JOHN ANTHONY;HILL JOHN RICHARD
分类号
G09F9/37
主分类号
G09F9/37
代理机构
代理人
主权项
地址
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