Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873623 | Process control interface with simultaneously displayed three level dynamic menu | Leslie A. Lane, Lynn V. Lybeck, David S. Perloff | 1989-10-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873623 | Process control interface with simultaneously displayed three level dynamic menu | Leslie A. Lane, Lynn V. Lybeck, David S. Perloff | 1989-10-10 |