Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4508043 | Presser foot device on a sewing machine | — | 1985-04-02 |
| 4487145 | Presser foot drive linkage in a sewing machine | — | 1984-12-11 |
| 4476795 | Reversible feed mechanism for sewing machines | — | 1984-10-16 |
| 4476796 | Upper cloth feed in a sewing machine | — | 1984-10-16 |
| 4467738 | Detachable drive for sewing machine trimming knife | Karl-Heinz Walther, Albert Dusch | 1984-08-28 |
| 4455957 | Thread cutter for a zig-zag sewing machine | — | 1984-06-26 |
| 4384540 | Sewing machine having a cutting device | Karl-Heinz Walther | 1983-05-24 |