Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5761943 | Method of and arrangement for making helical springs from biconical wire | — | 1998-06-09 |
| 5277041 | Drain board for a device for applying a liquid film to a web of textile material | Karl-Heinz Ahrweiler, Wolfgang Kurschatke | 1994-01-11 |