Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4353350 | Fireplace heat exchanger | — | 1982-10-12 |
| 4353433 | Damping covering | Michael Mohrenstein-Ertel | 1982-10-12 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4353350 | Fireplace heat exchanger | — | 1982-10-12 |
| 4353433 | Damping covering | Michael Mohrenstein-Ertel | 1982-10-12 |