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发明名称
Dispositif pour le réglage automatique du temps d'exposition dans des appareils photographiques ou analogues
摘要
申请公布号
FR802940(A)
申请公布日期
1936.09.18
申请号
FRD802940
申请日期
1936.02.28
申请人
发明人
BLECHNER HEINRICH
分类号
G03B7/12
主分类号
G03B7/12
代理机构
代理人
主权项
地址
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