Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D309110 | Anniversary clock case | — | 1990-07-10 |
| 4745590 | Anniversary clock with glass case | — | 1988-05-17 |
| D273849 | Electric clock movement | Jurgen Berges, Wolfgang Fehrenbacher, Erich Scheer | 1984-05-15 |
| 4301453 | Radar device for simultaneously measuring distance and relative speed | Bernard Hahn | 1981-11-17 |