Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4345388 | Method for controlling the production of a dredging apparatus | — | 1982-08-24 |
| 4343102 | Method for controlling the operation of a dredging apparatus | Christiaan A. Cornelis | 1982-08-10 |