Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5469972 | Screening apparatus and method for screening mixed materials | Jean-Guy St-Pierre | 1995-11-28 |
| 5232098 | Screening apparatus for efficiently separating coarse material from finer material | Jean-Guy St-Pierre | 1993-08-03 |