Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814972 | Method and videotex apparatus for fast access of remotely located information | Thomas R. Ray, Mary E. Burkhardt | 1989-03-21 |
| D300140 | Keyboard panel for information system terminal | Vernon W. Cain, Thomas R. Ray, Robert G. Burk | 1989-03-07 |