Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D575921 | Mover's dolly for doors | — | 2008-08-26 |
| 4322020 | Invertible pump sprayer | — | 1982-03-30 |
| 4307051 | Process for manufacturing a lightweight refractory product | Graham K. Sargeant | 1981-12-22 |