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发明名称
Dispositif à cellule photo-sensible destiné à provoquer des oscillations à fréquences audibles pour le contrôle et la détection de variations lumineuses
摘要
申请公布号
FR782496(A)
申请公布日期
1935.06.05
申请号
FRD782496
申请日期
1934.03.01
申请人
发明人
RIO ANDRE, GABRIEL, PIERRE
分类号
H01H47/24
主分类号
H01H47/24
代理机构
代理人
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地址
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