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发明名称
Signaling apparatus with visual display for fire alarms and the like
摘要
申请公布号
US2332774(A)
申请公布日期
1943.10.26
申请号
US19400331646
申请日期
1940.04.25
申请人
CURTIS E. MCGHEE
发明人
BELL KEITH L.
分类号
G08B5/36
主分类号
G08B5/36
代理机构
代理人
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