| Number | Name | Date | Kind |
|---|---|---|---|
| 3665513 | Benson | May 1972 | |
| 3775594 | Pasieka | Nov 1973 | |
| 3836754 | Toye | Sep 1974 | |
| 3863050 | Brugger | Jan 1975 | |
| 3959630 | Hogberg | May 1976 |
| Entry |
|---|
| R. L. Gilbert, -- "Label Printer", IBM Technical Disclosure Bulletin, vol. 17, No. 5, pp. 1320-1321, Oct. 1974. |