Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862336 | Dimorphic truss unit | John R. Richardson | 1989-08-29 |
| 4855884 | Variable beamwidth stage light | — | 1989-08-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862336 | Dimorphic truss unit | John R. Richardson | 1989-08-29 |
| 4855884 | Variable beamwidth stage light | — | 1989-08-08 |