Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4732623 | Method of making high strength steel tube | Heinz Gross, Friedrich Reith, Friedhelm Retzlaff | 1988-03-22 |
| 4487070 | Automatic production control of extended work pieces | Erich Gerling, Hans-J/u/ rgen Wahl | 1984-12-11 |
| 4414042 | Method of making high strength steel tube | Heinz Gross, Friedrich Reith, Friedhelm Retzlaff | 1983-11-08 |
| 4298785 | Method and device for automatically tracking systems to the center of weld gaps, weld joints and weld reinforcements | Paul Krenzer, Franz-Josef Peters, Hans-Jürgen Wahl | 1981-11-03 |