Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5363786 | Thread tensioning device having an electromagnet for applying a variable force opposing rotation of a tensioning element | Klaus Hampel, Gunter Pries | 1994-11-15 |
| 4674425 | Thread-chain separating head for a double chainstitch sewing machine | Klaus Hampel | 1987-06-23 |
| 4643114 | Device for controlling the looper thread of a double chainstitch sewing machine | Klaus Hampel | 1987-02-17 |
| 4502398 | Throat plate for a double lockstitch automatic sewing arrangement | — | 1985-03-05 |