Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5909535 | Hot air welding torch with concentric tubular members providing cooling air flow | Donald L. Curwick | 1999-06-01 |
| 4626357 | Waste water control method and means | Frank J. Finger | 1986-12-02 |