Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874812 | Single-component polyrethane coating mass | Rolf Nagel, Jurg Stahli | 1989-10-17 |
| 4823340 | Circuit arrangement for non-blocking switching of PCM channels in the space and time domain | Wolfgang Grassman, Walter Berner | 1989-04-18 |
| 4812356 | Coating composition for flexible substrates and the use thereof, and a method for the production of a protective coating | Rainer Meyer, Reinmar John, Rolf Nagel | 1989-03-14 |