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发明名称
Vérificateur de mise au point pour les agrandissements photographiques
摘要
申请公布号
FR809547(A)
申请公布日期
1937.03.04
申请号
FRD809547
申请日期
1936.07.30
申请人
发明人
ANDRE DODIN LUCIEN, JULES, EMILE,
分类号
G03B3/00
主分类号
G03B3/00
代理机构
代理人
主权项
地址
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