Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4953727 | Piston and shaft assembly of railroad end-of-car cushioning devices and method of repairing same | Robert Davidson, David B. Shultz, Keith Miller | 1990-09-04 |
| 4782740 | Piston and shaft assembly for an end-of-car cushioning unit | Donald R. Fagin, Clebern W. Sigley | 1988-11-08 |
| 4719686 | Method for repairing a piston and shaft assembly | Donald R. Fagin, Clebern W. Sigley | 1988-01-19 |