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发明名称
Diaphragme à iris comportant plusieurs lamelles en arc de cercle, utilisable de préférence pour la photographie
摘要
申请公布号
FR1280386(A)
申请公布日期
1961.12.29
申请号
FR19610852775
申请日期
1961.02.15
申请人
JOS. SCHNEIDER & CO., OPTISCHE WERKE
发明人
分类号
G03B9/08
主分类号
G03B9/08
代理机构
代理人
主权项
地址
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