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经营范围
发明名称
Power failure alarm
摘要
申请公布号
US2566597(A)
申请公布日期
1951.09.04
申请号
US19490108722
申请日期
1949.08.05
申请人
CASS GEORGE J
发明人
CASS GEORGE J.
分类号
G04C10/04
主分类号
G04C10/04
代理机构
代理人
主权项
地址
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