Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834216 | Foldable ladder structure and method of manufacturing the same | Claude R. Wallick, Jr. | 1989-05-30 |
| D300365 | Step ladder | Claude R. Wallick, Jr. | 1989-03-21 |
| D300366 | Step ladder back section | Claude R. Wallick, Jr. | 1989-03-21 |
| D300252 | Molded step ladder top | — | 1989-03-14 |