Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4319436 | Portable blasting device and sealing means | — | 1982-03-16 |
| 4275531 | Abrasive particle blast apparatus for surface treatment | — | 1981-06-30 |
| 4202142 | Abrasive particle blast apparatus for surface treatment | — | 1980-05-13 |
| 4199905 | Blast head rigging apparatus for tank side cleaning | Robert J. Neidigh | 1980-04-29 |