Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698033 | Apparatus for the production of a magnetic recording medium | Siegfried Rieger, Franz-Xaver Wagner | 1997-12-16 |
| 5040481 | Apparatus for the removal of thickenings formed in coatings transversely to the direction of movement of a coated web | Reinhold Nentwich, Siegfried Rieger, Johann Baarfusser, Lothar Langer, Joachim Mittmeyer | 1991-08-20 |