发明授权
- 专利标题： Double-hooked spool
- 专利标题（中）： 双钩线轴
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申请号： US434746申请日： 1982-10-18
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公开(公告)号： US4506843A公开(公告)日： 1985-03-26
- 发明人: Hermann Luhrig , Guido Kovacic
- 申请人： Hermann Luhrig , Guido Kovacic
- 申请人地址： DEX Leverkusen
- 专利权人： Agfa-Gevaert Aktiengesellschaft
- 当前专利权人： Agfa-Gevaert Aktiengesellschaft
- 当前专利权人地址： DEX Leverkusen
- 优先权： DEX8131086[U] 19811024
- 主分类号： G03B17/00
- IPC分类号： G03B17/00 ; B65H75/28 ; G03B17/30 ; G03B17/26
摘要：
The invention relates to a film spool with double hooks for fastening the perforated end of a film in the slot of a film spool, whereby a bar is positioned in the slot, on said bar are provided at least two pairs of hooks having hooking directions which are displaced in pairs by 180.degree. and are arranged above and below the central bar and holding down devices are provided in the slot above and below the central bar.
公开/授权文献
- US5053717A FSK demodulator 公开/授权日：1991-10-01
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