Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4265181 | Rolling bearing wheel and hub support combination | Kenneth D. Schreyer, Earl T. Leverentz, Reuben P. Benton | 1981-05-05 |
| 4236456 | Trolley suspension | Kenneth D. Schreyer, Earl T. Leverentz | 1980-12-02 |