Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5237944 | Stitch-forming machine with a transducer and a control device | Erich Willenbacher, Bernhard Mertel, Walter Sinn | 1993-08-24 |
| 4923558 | Device for the welding of plastic foil | Bernd Ellenberger, Friedrich Jennet, Karlheinz Schafer, Gerhard Lass | 1990-05-08 |
| 4660481 | Sewing machine having presser foot pressure force measuring device | — | 1987-04-28 |