Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5778750 | Lever-operated push flap for manual punch | James J. Drzewiecki | 1998-07-14 |
| 5501128 | Floating die paper punch | — | 1996-03-26 |
| 5106222 | Embossed cover for ring binder mechanism | — | 1992-04-21 |
| 4733840 | Tie-down security system and security plate | — | 1988-03-29 |