Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817477 | Apparatus and method of automatically punching hole patterns in sheets of material | Michael B. Dent | 1989-04-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817477 | Apparatus and method of automatically punching hole patterns in sheets of material | Michael B. Dent | 1989-04-04 |