Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D302472 | Compact fluorescent reflector lamp | Wallace T. MacDonald, Robert E. Cassidy, Antonius J. M. Van Hees, Frederik H. Alkema | 1989-07-25 |
| D302473 | Compact fluorescent lamp | Wallace T. MacDonald, Robert E. Cassidy | 1989-07-25 |