Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5068720 | Video inspection system for hazardous environments | Nils G. Herlitz, Karl I. Iglehart | 1991-11-26 |
| 4961111 | Video inspection system for hazardous environments | Nils G. Herlitz, Karl L. Iglehart | 1990-10-02 |
| 4225362 | Method for cleaning the interior of tubes | — | 1980-09-30 |