Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4397173 | Tube expander | Larry G. Eftefield | 1983-08-09 |
| 4339866 | Method of connecting a tube to a flange | John L. Hughes | 1982-07-20 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4397173 | Tube expander | Larry G. Eftefield | 1983-08-09 |
| 4339866 | Method of connecting a tube to a flange | John L. Hughes | 1982-07-20 |