Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5582538 | Boiler tube cutting apparatus | — | 1996-12-10 |
| 5199221 | Tube cutting apparatus | — | 1993-04-06 |
| 5033347 | Boiler tube cutting apparatus | Mark W. Hillestad | 1991-07-23 |
| 5007778 | Portable power tool for milling tube ends | Mark W. Hillestad | 1991-04-16 |
| 4915552 | Portable power tool for milling tube ends | Mark W. Hillestad | 1990-04-10 |
| 4889454 | Portable power tool for milling tube ends | Mark W. Hillestad | 1989-12-26 |
| 4761104 | Portable tube milling tool | — | 1988-08-02 |
| 4620823 | Portable tube milling tool | — | 1986-11-04 |
| 4449871 | Portable tube milling tool | — | 1984-05-22 |