Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6089165 | Railway truck with underslung equilizer beams | Richard B. Polley, Roger F. Sanzo, Todd A. Porter | 2000-07-18 |
| 5462139 | Cast bolt-on mounting bracket for supporting a disc brake on a railcar truck | Richard B. Polley, Roger F. Sanzo | 1995-10-31 |
| 4238006 | Radial axle truck disc brakes | Keith L. Jackson, Kenneth E. Spencer | 1980-12-09 |