Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870546 | Electric lighting device for household appliances such as ovens | Kurt Lintner, Josef Krautscheid, Johann Klement | 1989-09-26 |
| 4853508 | Lighting device for an oven to be exposed to microwave energy, in particular a household oven | — | 1989-08-01 |
| 4814952 | Lighting device for an oven capable of being acted upon by microwave energy, in particular a household oven | — | 1989-03-21 |