Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4350105 | Sewing machine with a device for lubricating the looper | Ernst Albrecht, Reiner Hensel, Karl Keller | 1982-09-21 |
| 4296697 | Sewing machine with a work holder for wrapping button shanks | Karl Barth, Ernst Albrecht | 1981-10-27 |