Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4351497 | Cassette for band material | Otto Wiedemann, Peter Lau, Gabriel Vondrovsky | 1982-09-28 |
| 4280041 | Apparatus for arc welding or plasma cutting | Wolfgang Lookhof | 1981-07-21 |