Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4606288 | Sewing machine needle guiding and aligning device | — | 1986-08-19 |
| 4553492 | Needle guide for sewing machines | — | 1985-11-19 |
| 4480562 | Sewing machine loop spreading mechanism | Wolf R. von Hagen | 1984-11-06 |
| 4457247 | Thread control mechanism for sewing machines | Wolf R. von Hagen, Helmut Bauer | 1984-07-03 |