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发明名称
Système optique à éléments interchangeables permettant de modifier le grandissement de l'image
摘要
申请公布号
FR1102390(A)
申请公布日期
1955.10.19
申请号
FRD1102390
申请日期
1954.06.15
申请人
JOS. SCHNEIDER & CO. OPTISCHE WERKE
发明人
分类号
G02B15/06
主分类号
G02B15/06
代理机构
代理人
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