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发明名称
Photographic objective of gauss-type
摘要
申请公布号
US2681594(A)
申请公布日期
1954.06.22
申请号
US19510234353
申请日期
1951.06.29
申请人
CANON CAMERA COMPANY, LTD.
发明人
ITO HIROSHI
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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