Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5509487 | Coring apparatus | Raymond Jeffrey Dufty | 1996-04-23 |
| 5468267 | Rolling apparatus | Raymond Jeffrey Dufty | 1995-11-21 |
| 4217967 | Rollers | — | 1980-08-19 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5509487 | Coring apparatus | Raymond Jeffrey Dufty | 1996-04-23 |
| 5468267 | Rolling apparatus | Raymond Jeffrey Dufty | 1995-11-21 |
| 4217967 | Rollers | — | 1980-08-19 |