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发明名称
Telephoto attachment for photographic objectives
摘要
申请公布号
US2728266(A)
申请公布日期
1955.12.27
申请号
US19540426681
申请日期
1954.04.30
申请人
EASTMAN KODAK COMPANY
发明人
TOLLE KARL
分类号
G02B13/02
主分类号
G02B13/02
代理机构
代理人
主权项
地址
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