Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4796022 | Double transit bus system | Frank Mellor | 1989-01-03 |
DS
David Schenkel
Overall (1989): #121,795 of 140,708Top 90%
1
Patents 1989