Number | Name | Date | Kind |
---|---|---|---|
2906522 | Wagner | Sep 1959 | |
3110250 | Fradkin | Nov 1963 | |
3276762 | Thomas | Oct 1966 | |
3384216 | Thayer | May 1968 | |
3442365 | Ragland, III et al. | May 1969 | |
3504623 | Staller | Apr 1970 | |
3631797 | Johnston et al. | Jan 1972 | |
3670647 | Funk et al. | Jun 1972 | |
3968744 | Kasu et al. | Jul 1976 | |
4167343 | Golobay | Sep 1979 |
Number | Date | Country |
---|---|---|
2717686 | Nov 1977 | DEX |
993833 | Jun 1965 | GBX |
Entry |
---|
IBM Technical Disclosure Bulletin, vol. 19, No. 2, Jul. 1976, pp. 443-444, "Print Impression Control Device", J. E. Drejza. |