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发明名称
Perfectionnement aux viseurs de caméra et d'appareil photographique
摘要
申请公布号
FR1035189(A)
申请公布日期
1953.08.18
申请号
FRD1035189
申请日期
1951.04.07
申请人
发明人
BOISSE STEPHANE
分类号
G02B23/14
主分类号
G02B23/14
代理机构
代理人
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