Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872500 | Method of manufacturing a tool | Donald Duffey, Sellers Hardee, Wayne C. Smith, James Elliott, Robert K. Gardner | 1989-10-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872500 | Method of manufacturing a tool | Donald Duffey, Sellers Hardee, Wayne C. Smith, James Elliott, Robert K. Gardner | 1989-10-10 |