Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871182 | Fifth wheel unlocking and safety latch device | Richard L. Glaser, Francis E. Madura, Robert P. Radwill | 1989-10-03 |
| 4863045 | Rotary railway drawbar coupler | — | 1989-09-05 |