Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828488 | Heater plug cooled by the combustion air for heating appliances | Fritz Mohring | 1989-05-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828488 | Heater plug cooled by the combustion air for heating appliances | Fritz Mohring | 1989-05-09 |