Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5181741 | Ice block sled | Lawrence S. Sheiman | 1993-01-26 |
| 5039130 | Sled | Lawrence S. Sheiman | 1991-08-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5181741 | Ice block sled | Lawrence S. Sheiman | 1993-01-26 |
| 5039130 | Sled | Lawrence S. Sheiman | 1991-08-13 |