Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697433 | Heat-exchanger conduit for tube-stacking type heat exchanger and method of manufacturing it | — | 1997-12-16 |
| 5689881 | Flat tube for heat exchanger and method for producing same | — | 1997-11-25 |
| 5685075 | Method for brazing flat tubes of laminated heat exchanger | — | 1997-11-11 |