Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6644457 | Escalator combteeth force detector | — | 2003-11-11 |
| 6591946 | Adjustable door restrictor cable for an elevator car | — | 2003-07-15 |
| 6530465 | Illuminated escalator combplate | — | 2003-03-11 |
| 6520310 | Combplate load and obstruction sensor apparatus | Melanie J. Smith | 2003-02-18 |