Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4815874 | Thermal printer and tape-ribbon cartridge with cut-off mechanism | Frank A. Borgeson | 1989-03-28 |
| 4815875 | Tape-ribbon cartridge and receiver tray with pivoted cover and cam | Frank A. Borgeson | 1989-03-28 |