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发明名称
Optical lens system having a relative aperture larger than f/1
摘要
申请公布号
US2978957(A)
申请公布日期
1961.04.11
申请号
US19590801361
申请日期
1959.03.23
申请人
N. V. OPTISCHE INDUSTRIE DE OUDE DELFT
发明人
BECKER JOHANNES;BULTHUIS HENRICUS WILHELMUS
分类号
G02B13/00
主分类号
G02B13/00
代理机构
代理人
主权项
地址
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