Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883160 | Curved escalator with fixed center constant radius path of travel | Klaus Seehausen, James A. Rivera, Dat Nguyen, Peter Borchers | 1989-11-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883160 | Curved escalator with fixed center constant radius path of travel | Klaus Seehausen, James A. Rivera, Dat Nguyen, Peter Borchers | 1989-11-28 |