Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858936 | Split gland seal assembly | — | 1989-08-22 |
| 4827692 | Mechanism for packaging hamburger patties | Roger Fiske, John Joseph King | 1989-05-09 |
| 4829560 | Communications system for use in a hotel/motel | Walter Evanyk, Michael Beber, Joel R. Donaldson, J. K. Larsen, Michael W. Douglas | 1989-05-09 |