Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868888 | Audio communications module for an office chair | — | 1989-09-19 |
| 4799254 | Portable communication terminal for remote database query | Richard Bergeron, Donald R. Shriner | 1989-01-17 |