发明授权
- 专利标题: Roll microfilm retrieving method and device therefor
- 专利标题(中): 滚筒微波检测方法及其设备
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申请号: US453051申请日: 1974-03-20
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公开(公告)号: US3950652A公开(公告)日: 1976-04-13
- 发明人: Hajime Yamashita
- 申请人: Hajime Yamashita
- 申请人地址: JA Tokyo
- 专利权人: Kabushiki Kaisha Ricoh
- 当前专利权人: Kabushiki Kaisha Ricoh
- 当前专利权人地址: JA Tokyo
- 优先权: JA43-75988 19681127
- 主分类号: G06K17/00
- IPC分类号: G06K17/00 ; G06K7/10
摘要:
A roll microfilm having a plurality of consecutive frames. Each frame has a border therearound with a plurality of small sized marks located within the border and being unequally spaced apart with respect to each other for detection by a plurality of corresponding detecting elements having the same spacing.
公开/授权文献
- US5922569A Process for the production of polypeptides 公开/授权日:1999-07-13
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