Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887183 | Communication system thermoprotection device for over voltage suppressor mounted in overvoltage suppressor magazines of communication systems | Lutz Biederstedt | 1989-12-12 |
| 4877540 | Methylolated and optionally etherified urethanes containing fluoroalkyl ligands | Fritz Engelhardt, Karl Hintermeier, Norbert Munch, Hans Wagener | 1989-10-31 |
| 4871330 | Electrical connector construction | Lutz Biederstedt | 1989-10-03 |
| 4846735 | Telecommunication terminal strip | Heide Teichler | 1989-07-11 |
| 4822298 | Wire connection for cable wires | Dieter Gerke, Lutz Biederstedt | 1989-04-18 |