Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4255104 | System for casting and handling concrete railroad ties | — | 1981-03-10 |
| 4253817 | Concrete railroad tie casting and handling system | William C. Weikert | 1981-03-03 |
| 4242071 | Concrete railroad tie casting and handling system | — | 1980-12-30 |