Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4658752 | Method and apparatus for drawing a needle thread through a workpiece | Werner Keilmann, Hans Scholl | 1987-04-21 |
| 4586449 | Thread cutting devices for double lockstitch sewing machines | — | 1986-05-06 |