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发明名称
Spring motor-operated fire alarm
摘要
申请公布号
US2769422(A)
申请公布日期
1956.11.06
申请号
US19540468353
申请日期
1954.11.12
申请人
JENKS RAYMOND L
发明人
JENKS RAYMOND L.
分类号
G08B17/02
主分类号
G08B17/02
代理机构
代理人
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