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发明名称
Signaling device for indicating fires or high-temperature conditions in room areas
摘要
申请公布号
US2569062(A)
申请公布日期
1951.09.25
申请号
US19490103696
申请日期
1949.07.08
申请人
KJELDERGAARD ALBERT O
发明人
KJELDERGAARD ALBERT O.
分类号
G08B17/02
主分类号
G08B17/02
代理机构
代理人
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