Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D275235 | Tree climber seat or the like | Alvin E. Warren | 1984-08-21 |
| 4230203 | Tree climbing apparatus | Alvin E. Warren | 1980-10-28 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D275235 | Tree climber seat or the like | Alvin E. Warren | 1984-08-21 |
| 4230203 | Tree climbing apparatus | Alvin E. Warren | 1980-10-28 |