Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824297 | Thread forming apparatus having tangential chasers for cutting a thread on a railroad spike | Lee Connor, Robert Lybarger, Charles E. Gutshall | 1989-04-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824297 | Thread forming apparatus having tangential chasers for cutting a thread on a railroad spike | Lee Connor, Robert Lybarger, Charles E. Gutshall | 1989-04-25 |