Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842154 | Apparatus for underwater working | — | 1989-06-27 |
| 4837420 | Method and apparatus for conducting current to an electrode in arc welding, arc cutting or the like operations | — | 1989-06-06 |
| 4790887 | Additive for use in underwater arc-welding | — | 1988-12-13 |
| 4729503 | Method and equipment for underwater attachment | — | 1988-03-08 |