发明授权
- 专利标题： Photoplotter cassette
- 专利标题（中）： 照相机CASSETTE
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申请号： US3759613D申请日： 1971-05-05
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公开(公告)号： US3759613A公开(公告)日： 1973-09-18
- 发明人: DENIS R
- 申请人： COMPUTERVISION CORP
- 专利权人： Computervision Corp
- 当前专利权人： Computervision Corp
- 优先权： US14046571 1971-05-05
- 主分类号： G03B27/60
- IPC分类号： G03B27/60
摘要：
A cassette adapted to be loaded with either or both photographic film or a glass plate for use in a light-tight photoplotter. The cassette has vacuum drawing means for holding the film on one side of the cassette and conventional means for holding the glass plate on the other side of the cassette. The cassette can be mounted in the photoplotter with either side facing the lens.
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