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发明名称
Viseur réducteur à lunette pour appareils photographiques
摘要
申请公布号
FR736084(A)
申请公布日期
1932.11.18
申请号
FRD736084
申请日期
1932.04.28
申请人
CARL ZEISS
发明人
分类号
G02B23/14
主分类号
G02B23/14
代理机构
代理人
主权项
地址
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