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发明名称
Annunciator and alarm system
摘要
申请公布号
US2707777(A)
申请公布日期
1955.05.03
申请号
US19520316186
申请日期
1952.10.22
申请人
PANELLIT, INC.
发明人
MARMORSTONE ROBERT JOSEPH
分类号
G08B25/14
主分类号
G08B25/14
代理机构
代理人
主权项
地址
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