Number | Name | Date | Kind |
---|---|---|---|
2713822 | Newman | Jul 1955 | |
3119919 | Pratt | Jan 1964 | |
3132584 | Dalton | May 1964 | |
3744611 | Montanari et al. | Jul 1973 | |
3847265 | Ehretsmann et al. | Nov 1974 | |
4032925 | Kos | Jun 1977 |
Number | Date | Country |
---|---|---|
28334 | May 1981 | EPX |
2527948 | Jan 1976 | DEX |
Entry |
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Wilbur "Electrothermal Print Head" IBM Tech. Disclosure Bulletin, vol. 23, No. 9, Feb. 1981, pp. 4305-4306. |