Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4326956 | Backwashable filter system | — | 1982-04-27 |
| 4309632 | Electric machine with a rotor with a superconducting field winding | Dieter Kullmann, Erich Weghaupt | 1982-01-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4326956 | Backwashable filter system | — | 1982-04-27 |
| 4309632 | Electric machine with a rotor with a superconducting field winding | Dieter Kullmann, Erich Weghaupt | 1982-01-05 |