Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4359977 | Heater plug for diesel engines | Franz Sperner, Fritz Aldinger | 1982-11-23 |
| 4358663 | Heater plug for diesel engines | Franz Sperner, Fritz Aldinger | 1982-11-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4359977 | Heater plug for diesel engines | Franz Sperner, Fritz Aldinger | 1982-11-23 |
| 4358663 | Heater plug for diesel engines | Franz Sperner, Fritz Aldinger | 1982-11-09 |