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发明名称
Mechanically compensated zoom lens system
摘要
申请公布号
US3372974(A)
申请公布日期
1968.03.12
申请号
US19640356769
申请日期
1964.04.02
申请人
BELL & HOWELL COMPANY
发明人
LINKE WALTER R.
分类号
G02B15/14
主分类号
G02B15/14
代理机构
代理人
主权项
地址
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