Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5076173 | Lifting hook arrangement for railway tank car | John A. Krug | 1991-12-31 |
| 4392575 | Swivel assembly for end cock | Richard J. Mandrell | 1983-07-12 |
| 4281951 | Container pedestal supplemental lock | Richard J. Mandrell | 1981-08-04 |
| 4207822 | Hopper car outlet gate assembly | James R. Zimmerle | 1980-06-17 |