Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4449569 | Method and apparatus for regulating fluid flows in parallel-connected conduits (e.g. in furnace installations having air preheaters and by-pass conduits) | Edward L. Lisi, Arne Andersson | 1984-05-22 |