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发明名称
SMALL-SIZED ZOOM LENS
摘要
申请公布号
JPH02223908(A)
申请公布日期
1990.09.06
申请号
JP19890044782
申请日期
1989.02.23
申请人
CANON INC
发明人
ITO YOSHIAKI
分类号
G02B13/18;G02B15/16
主分类号
G02B13/18
代理机构
代理人
主权项
地址
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