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发明名称
Obturateur à au moins trois volets pour appareils photographiques
摘要
申请公布号
FR56280(E)
申请公布日期
1952.09.22
申请号
FRD56280
申请日期
1944.06.02
申请人
发明人
GITZHOVEN ARSENE
分类号
G03B9/22
主分类号
G03B9/22
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