Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5645156 | Device for monitoring escalator handrail speed | Denis Cho | 1997-07-08 |
| 5601178 | Detection of escalator safety circuit component operability | John Joseph Faup | 1997-02-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5645156 | Device for monitoring escalator handrail speed | Denis Cho | 1997-07-08 |
| 5601178 | Detection of escalator safety circuit component operability | John Joseph Faup | 1997-02-11 |