Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4630815 | Quick releasing, pinch roller mechanism | Borge Petersen | 1986-12-23 |
| 4406553 | Disposable, snap-in-type ribbon cassette having a resilient ribbon spool mounting arm | Elbert H. Vandenham | 1983-09-27 |