Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869466 | All terrain edge protector | — | 1989-09-26 |
| 4802264 | Twisted carabiner | — | 1989-02-07 |
| 4632217 | Automatically adjustable climbing harness | John H. Markwell | 1986-12-30 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869466 | All terrain edge protector | — | 1989-09-26 |
| 4802264 | Twisted carabiner | — | 1989-02-07 |
| 4632217 | Automatically adjustable climbing harness | John H. Markwell | 1986-12-30 |