Number | Name | Date | Kind |
---|---|---|---|
4019100 | Barrus | Apr 1977 | |
4293888 | McCarty | Oct 1981 | |
4297742 | Heitzman et al. | Oct 1981 | |
4314305 | Williams et al. | Feb 1982 | |
4381532 | Arnold | Apr 1983 | |
4408129 | Arnold | Oct 1983 | |
4503480 | Pickard et al. | Mar 1985 | |
4556926 | Yanagida | Dec 1985 | |
4589401 | Karim et al. | May 1986 | |
4605983 | Harvey | Aug 1986 | |
4667117 | Nebgen et al. | May 1987 | |
4812945 | D'Onorio | Mar 1989 | |
4814937 | Uota | Mar 1989 | |
4949215 | Studtmann et al. | Aug 1990 |
Entry |
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IBM Technical Disclosure Bulletin vol. 20, No. 9, Feb. 1978 "Print Hammer Magnet Control", pp. 3648, 3650 (page 3649 missing). |
IBM Technical Disclosure Bulletin vol. 22, No. 5 Oct. 1979 "Impact Force Compensation for Voltage Variations in the Hammer Firiing Pulse in Impact Printer" pp. 1756-1758. |
IBM Technical Disclosure Bulletin vol. 24, No. 11B, Apr. 1982 "Printer Hammer Coil Firing Control" pp. 6105-6106. |