Number | Date | Country | Kind |
---|---|---|---|
8510467 | Apr 1985 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
3614402 | Higgins | Oct 1971 | |
4284885 | Swensen | Aug 1981 | |
4315147 | Harmer | Feb 1982 | |
4346292 | Routt et al. | Aug 1982 | |
4379968 | Ely et al. | Apr 1983 | |
4417824 | Paterson et al. | Nov 1983 | |
4442425 | Eibner | Apr 1984 | |
4480184 | Ely | Oct 1984 | |
4634861 | Ching et al. | Jan 1987 |
Number | Date | Country |
---|---|---|
0030477 | Jun 1981 | EPX |
0047110 | Mar 1982 | EPX |
0080318 | Jun 1983 | EPX |
0094828 | Nov 1983 | EPX |
0114197 | Aug 1984 | EPX |
0147097 | Jul 1985 | EPX |
1419622 | Dec 1975 | GBX |
2073881 | Oct 1981 | GBX |
2114834 | Aug 1983 | GBX |
2131989 | Jun 1984 | GBX |
Entry |
---|
Smith, "Optical Keyboard Encoding System", IBM Technical Disclosure Bulletin, vol. 5, No. 6, 11/62, pp. 84-85. |
Matino, "Optical Keyboard", IBM Technical Disclosure Bulletin, vol. 20, No. 2, 7/77, pp. 641-642. |
Uberbacher, "Optical Keyboard", IBM Technical Disclosure Bulletin, vol. 17, No. 3, 8/74, pp. 822-823. |