Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4512442 | Method and apparatus for improving the servicing of an elevator system | William H. Moore, Alan F. Mandel, William J. Trosky, Kenneth M. Eichler, Stephen Tomas +1 more | 1985-04-23 |