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发明名称
Camera
摘要
申请公布号
US2289853(A)
申请公布日期
1942.07.14
申请号
US19410389241
申请日期
1941.04.18
申请人
O'BRIEN CHARLES F
发明人
O'BRIEN CHARLES F.
分类号
G03B9/10
主分类号
G03B9/10
代理机构
代理人
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