Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5666872 | Rotary foam cutter for tapering insulation | Douglas Arthur McDonald, Jerold C. Gardner | 1997-09-16 |
| 5622227 | Multi-functioned farm implement for treating soil | — | 1997-04-22 |