Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4434721 | Anti-snap device for drafting board tilting mechanism | Leonard N. Zack | 1984-03-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4434721 | Anti-snap device for drafting board tilting mechanism | Leonard N. Zack | 1984-03-06 |