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发明名称
Optical viewer for films
摘要
申请公布号
US2601619(A)
申请公布日期
1952.06.24
申请号
US19490084687
申请日期
1949.03.31
申请人
LOOMIS PETER B
发明人
LOOMIS PETER B.
分类号
G02B27/04
主分类号
G02B27/04
代理机构
代理人
主权项
地址
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