Number | Name | Date | Kind |
---|---|---|---|
3661579 | Vrancken et al. | May 1972 | A |
4003743 | Akashi et al. | Jan 1977 | A |
4279945 | Audran et al. | Jul 1981 | A |
4341855 | Morrison et al. | Jul 1982 | A |
4385814 | Elliot | May 1983 | A |
4659198 | Beauviala et al. | Apr 1987 | A |
4673266 | Fiumi | Jun 1987 | A |
4854696 | Guez | Aug 1989 | A |
4859994 | Zola et al. | Aug 1989 | A |
4893921 | Beauviala | Jan 1990 | A |
4938585 | Weiffenbach et al. | Jul 1990 | A |
4965627 | Robinson | Oct 1990 | A |
5367348 | Nachmanson et al. | Nov 1994 | A |
5633127 | Nair et al. | May 1997 | A |
5959717 | Chaum | Sep 1999 | A |
Number | Date | Country |
---|---|---|
9015361 | Dec 1990 | WO |
Entry |
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“Datakode Magnetic Control Surface”, Eastman Kodak Company, 1983 (Publication No. V3-517). |