Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4665894 | Gas-heated or kerosene-heated boiler for warm water, hot water or steam generation | — | 1987-05-19 |
| 4453498 | Gas- or oil-burning warm water, hot water or steam boiler | — | 1984-06-12 |
| 4196700 | Boiler, primarily for warm-water floor heating | Bela Keseru | 1980-04-08 |