Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4966123 | Apparatus for the mixing of gas or gases with air in a controllable ratio for a combustion-engine | — | 1990-10-30 |
| 4452550 | Method and apparatus for laying pipelines on land | — | 1984-06-05 |
| 4301606 | Apparatus for excavating a trench underneath a pipeline installed on the sea bottom | — | 1981-11-24 |