Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7887270 | Apparatus for cutting an oval hole in the wall of a pipe | Tommi Aho, Pasi Pirila | 2011-02-15 |
| 5876161 | Method and apparatus for making a longitudinal hole in a pipe | Timo Saari | 1999-03-02 |