Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5360952 | Local area network eleveator communications network | David C. Brajczewski, Bertram F. Kupersmith | 1994-11-01 |
| 5345048 | Elevator speed check using constant ratiometric comparison | — | 1994-09-06 |