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发明名称
ZOOM LENS
摘要
申请公布号
JPH04237009(A)
申请公布日期
1992.08.25
申请号
JP19910019363
申请日期
1991.01.19
申请人
CANON INC
发明人
NAKAYAMA HIROKI
分类号
G02B15/20
主分类号
G02B15/20
代理机构
代理人
主权项
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