Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D386278 | Modular light unit | Joseph Engle, John R. Howard, Robert W. Machacek | 1997-11-11 |
| 5658067 | Modular light unit | Joseph Engle, John R. Howard, Robert W. Machacek | 1997-08-19 |