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发明名称
VARIABLE MAGNIFICATION LENS CAPABLE OF READILY SIFTING FOCAL LENGTH
摘要
申请公布号
JPS52123637(A)
申请公布日期
1977.10.18
申请号
JP19760039960
申请日期
1976.04.09
申请人
CANON KK
发明人
TANAKA KAZUO
分类号
G02B15/10;G02B15/02;G02B15/167;G02B15/20
主分类号
G02B15/10
代理机构
代理人
主权项
地址
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