Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6651540 | Hole punch quick-change die assembly with pin strap and positioning system | Marvin E. Whiteman, Jr. | 2003-11-25 |
| 6536321 | Hole punch quick-change die assembly with clamp system | Marvin E. Whiteman, Jr. | 2003-03-25 |