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发明名称
Perfectionnements apportés et relatifs aux systèmes ou dispositifs photogélectriques
摘要
申请公布号
FR750184(A)
申请公布日期
1933.08.05
申请号
FRD750184
申请日期
1933.02.04
申请人
发明人
FITZGERALD ALAN STEWART
分类号
G08B13/18
主分类号
G08B13/18
代理机构
代理人
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