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发明名称
SMOKE DETECTOR WITH MEANS INDICATING THE FAILURE OF THE LIGHT SOURCE
摘要
申请公布号
US3461443(A)
申请公布日期
1969.08.12
申请号
USD3461443
申请日期
1966.11.07
申请人
ALFRED W. VASEL
发明人
ALFRED W. VASEL
分类号
G01N21/27;G08B17/107;(IPC1-7):G08B21/00
主分类号
G01N21/27
代理机构
代理人
主权项
地址
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