Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366055 | Pressure filters | Ralph D. Gwilliam | 1982-12-28 |
| 4327462 | Multi-wheel bed roller | — | 1982-05-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366055 | Pressure filters | Ralph D. Gwilliam | 1982-12-28 |
| 4327462 | Multi-wheel bed roller | — | 1982-05-04 |