Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810932 | Tungsten-halogen incandescent and metal vapor discharge lamps and processes of making such | Frederic F. Ahlgren, John M. Davenport, Richard L. Hansler | 1989-03-07 |
| 4808876 | Metal halide lamp | Park French, Mary B. Gotti, Gilbert H. Reiling | 1989-02-28 |