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发明名称
Photographic slide viewer
摘要
申请公布号
US2580164(A)
申请公布日期
1951.12.25
申请号
US19500141405
申请日期
1950.01.31
申请人
FLYNN CHARLES F
发明人
FLYNN CHARLES F.
分类号
G02B27/02
主分类号
G02B27/02
代理机构
代理人
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