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发明名称
PROCEDE ET APPAREIL POUR AUGMENTER LE CHAMP D'UN OBJECTIF PHOTOGRAPHIQUE
摘要
申请公布号
FR2346733(A1)
申请公布日期
1977.10.28
申请号
FR19750018957
申请日期
1975.06.17
申请人
CANON KK
发明人
AKIRA TAJIMA
分类号
G02B15/10;G02B13/00;G02B15/167;G02B15/22;(IPC1-7):G02B15/06;G03B19/00
主分类号
G02B15/10
代理机构
代理人
主权项
地址
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