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发明名称
ZOOM LENS SYSTEM HAVING FOUR GROUPS
摘要
申请公布号
GB2061550(A)
申请公布日期
1981.05.13
申请号
GB19800032988
申请日期
1980.10.13
申请人
ASAHI KOGAKU KOGYO KK
发明人
分类号
G02B15/167;G02B15/173;(IPC1-7):G02B15/18
主分类号
G02B15/167
代理机构
代理人
主权项
地址
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