Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6315078 | Multi-position ladder and support therefor | Boyd S. Kumher | 2001-11-13 |
| 6105720 | Multi-position ladder and support therefor | Boyd S. Kumher | 2000-08-22 |
| 6073725 | Multi-position ladder and support therefor | Boyd S. Kumher | 2000-06-13 |