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发明名称
Photographic and projection objective
摘要
申请公布号
US1797202(A)
申请公布日期
1931.03.17
申请号
US19260132591
申请日期
1926.08.30
申请人
KAPELLA LIMITED
发明人
WARMISHAM ARTHUR
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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