Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4761885 | Sharpener for compass leads and pencil leads | — | 1988-08-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4761885 | Sharpener for compass leads and pencil leads | — | 1988-08-09 |