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发明名称
DEVICE FOR OBSERVING THE SUN'S BACKSCATTERED IMAGE ON A SCREEN
摘要
申请公布号
EP1521991(A1)
申请公布日期
2005.04.13
申请号
EP20020799851
申请日期
2002.12.24
申请人
LIGHT TEC
发明人
GAY, JEAN
分类号
G02B23/02;G02B23/20;G02B27/04;(IPC1-7):G02B27/04
主分类号
G02B23/02
代理机构
代理人
主权项
地址
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