Number | Name | Date | Kind |
---|---|---|---|
3780266 | Mudsam et al. | Dec 1973 | |
4321622 | Jerome et al. | Mar 1982 | |
4449212 | Reno | May 1984 | |
4466087 | Cheng | Aug 1984 | |
4767921 | Kawasaki et al. | Aug 1988 | |
4931628 | Wada | Jun 1990 | |
5081617 | Gelbart | Jan 1992 |
Entry |
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T. Ishida et al., "High Speed Optical Card Reader/Writer Using Two Optical Sources", 1989, pp. 4-265. |