Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845340 | Electric radiant heating element for heating a plate particularly a glass ceramic plate | Eugen Wilde, Robert Kicherer | 1989-07-04 |
| 4810857 | Radiant heater unit | — | 1989-03-07 |
| 4808798 | Radiant heater for cooking appliances | Felix Schreder | 1989-02-28 |