Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829560 | Communications system for use in a hotel/motel | Walter Evanyk, Joel R. Donaldson, J. K. Larsen, David Adams, Michael W. Douglas | 1989-05-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829560 | Communications system for use in a hotel/motel | Walter Evanyk, Joel R. Donaldson, J. K. Larsen, David Adams, Michael W. Douglas | 1989-05-09 |