Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4732676 | Filter device containing series-connected fibrous tube elements | Johan P. Barnard | 1988-03-22 |
| 4489655 | Sequential blasting system | — | 1984-12-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4732676 | Filter device containing series-connected fibrous tube elements | Johan P. Barnard | 1988-03-22 |
| 4489655 | Sequential blasting system | — | 1984-12-25 |