发明授权
- 专利标题: Microform viewer
- 专利标题(中): 微型查看器
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申请号: US658751申请日: 1976-02-17
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公开(公告)号: US4054373A公开(公告)日: 1977-10-18
- 发明人: George Davies , Hedda Wertheimer
- 申请人: George Davies , Hedda Wertheimer
- 专利权人: George Davies,Hedda Wertheimer
- 当前专利权人: George Davies,Hedda Wertheimer
- 优先权: UK6599/75 19750217
- 主分类号: G02B27/04
- IPC分类号: G02B27/04
摘要:
This invention is a portable hand operated viewer for micro-fiches and other material with writing too small to be read by the unaided eye. A translucent table has a clamp for the reading matter and that carries an adjustable binocular lens unit, with a head piece for correct location and for movement to scan the table. It is cheap and can be assembled by a child and is suitable for use in schools.
公开/授权文献
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