Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4412560 | Tube for a cracking plant | — | 1983-11-01 |
| 4363435 | Method for producing a tube for a cracking plant | — | 1982-12-14 |
| 4332156 | Method for the manufacture of pipes by means of extrusion as well as for providing one flange on at least two pipes, and device to carry out the said method | — | 1982-06-01 |
| 4183558 | Method for welding by pressure one or more pipes to a plate in one process | — | 1980-01-15 |