Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6274827 | Manual timer switching device having a rotatable knob | — | 2001-08-14 |
| 5275948 | Method for reprocessing scrap rubber | Gunhild Straube, Eckhardt Straube, Willi Neumann, Helmut Ruckauf, Ralf Forkmann | 1994-01-04 |