Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824297 | Thread forming apparatus having tangential chasers for cutting a thread on a railroad spike | Chalmer C. Jordan, Lee Connor, Robert Lybarger | 1989-04-25 |
| 4572875 | Blank for a thread forming screw | — | 1986-02-25 |
| 4355552 | Recessed head screw | — | 1982-10-26 |
| 4309135 | Concrete anchor | — | 1982-01-05 |
| 4202244 | Recessed head screw | — | 1980-05-13 |