Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4321843 | Process for the production of drawing die bores | Max Schwab, Peter J. Heinen, Willi Diederichs, Fritz-Gunter Ohloff, Hubert Minkenberg | 1982-03-30 |
| 4314391 | Yarn bulking jet | Peter J. Heinen | 1982-02-09 |