Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4393566 | Processing of copper tubing | Klaus Uhlmann | 1983-07-19 |
| 4368630 | Mandrel exchange in piercing mills | Klaus Uhlmann | 1983-01-18 |
| 4345363 | Method of continuously making flexible, heat insulated metal tubing | Ottmar Leuchs, Hans-Jurgen Kloppner | 1982-08-24 |