Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4358656 | Electron beam welding | Bruno J. M. de Sivry, Christian Bonnet | 1982-11-09 |
| 4357517 | Electron beam welding with beam focus controlled responsive to absorbed beam power | Bruno J. M. de Sivry, Christian Bonnet | 1982-11-02 |
| 4314135 | Positioning of one or more tools relative to a tubular structure | Bruno J. M. de Sivry, Jean-Pierre Hamon | 1982-02-02 |