Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4488605 | Extendible shank auger | Mark G. Ruppel | 1984-12-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4488605 | Extendible shank auger | Mark G. Ruppel | 1984-12-18 |