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经营范围
发明名称
Improvements in or relating to electrical alarm and indicator circuit systems
摘要
申请公布号
GB866168(A)
申请公布日期
1961.04.26
申请号
GB19580020209
申请日期
1958.06.24
申请人
ASTRAL SWITCHGEAR LIMITED
发明人
CONNOR VINCENT EDWARD
分类号
G08B29/12
主分类号
G08B29/12
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代理人
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