Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D304324 | Multi-outlet center | Robert Harold Lovett, Bart T. Ellson | 1989-10-31 |
| 4870548 | Convertible light fixture | Robert W. Beachy, Bart T. Ellson, Gerald E. Peterson | 1989-09-26 |
| 4814961 | Light fixture | Steven T. O'Brien, Robert W. Beachy | 1989-03-21 |