Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5293841 | Arrangement for utilizing the heat contained in the exhaust gas of a coal-fired boiler | Ludwig Suhr | 1994-03-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5293841 | Arrangement for utilizing the heat contained in the exhaust gas of a coal-fired boiler | Ludwig Suhr | 1994-03-15 |