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发明名称
Four component high aperture wide angle objective lens
摘要
申请公布号
US2779239(A)
申请公布日期
1957.01.29
申请号
US19550530242
申请日期
1955.08.24
申请人
CANON CAMERA COMPANY, INC.
发明人
ITO HIROSHI
分类号
G02B13/04
主分类号
G02B13/04
代理机构
代理人
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