Number | Date | Country | Kind |
---|---|---|---|
2658123 | Dec 1976 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3366213 | Craft et al. | Jan 1968 | |
3442365 | Ragland et al. | May 1969 | |
3677387 | Herterich et al. | Jul 1972 | |
3858509 | Grundherr | Jan 1975 | |
3983985 | Guerrini et al. | Oct 1976 |
Entry |
---|
I.B.M. Tech. Disc. Bulletin, R. D. Mathews, "Printer Impact Control", vol. 18, No. 11, Apr. 1976, pp. 3533-3534. |
I.B.M. Tech. Disc. Bulletin, J. E. Drejza, "Print Impression Control Device", vol. 19, No. 2, Jul. 1976, pp. 443-444. |