Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5143268 | Flat tube cutting techniques | — | 1992-09-01 |
| 4780955 | Apparatus for making a tube and fin heat exchanger | — | 1988-11-01 |
| 4771536 | Expansion rod mounting structure | Fred J. Vanderlaan | 1988-09-20 |