Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4339897 | Sandblasting methods and apparatus | Robert E. Thompson | 1982-07-20 |
| 4325292 | Blast room floor | Robert E. Thompson | 1982-04-20 |
| 4322058 | Pipe side valve | Robert E. Thompson | 1982-03-30 |