Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6283270 | Escalator step with removable demarcation inserts | Vincent Robibero, Melanie J. Smith | 2001-09-04 |
| 6029708 | Pulsation damper for a hydraulic elevator | Charles P. Spell, II, Dean Chow | 2000-02-29 |