Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4282784 | Method and lathe for machining out-of-round circumferences | Otto Feller, Heinz Oepen, Manfred Kuhl, Horst Bornefeld, Hans-Gunter Seiler +1 more | 1981-08-11 |
| 4266329 | Apparatus for positioning out-of-round workpieces particularly piston rings | Otto Feller, Wilfried Schmitz | 1981-05-12 |
| 4250779 | Apparatus for making out-of-round workpieces | Otto Feller, Manfred Kuhl | 1981-02-17 |