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发明名称
Ambient light-controlled flashing signal
摘要
申请公布号
US2674726(A)
申请公布日期
1954.04.06
申请号
US19510219445
申请日期
1951.04.05
申请人
PAUL WILLIAMS
发明人
WILLIAMS PAUL
分类号
H05B39/09
主分类号
H05B39/09
代理机构
代理人
主权项
地址
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