Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842635 | Method of manufacturing a low-pressure mercury vapor discharge lamp and low-pressure mercury vapor discharge lamp manufactured by means of this method | Antonius J. Spaapen | 1989-06-27 |
| 4324447 | Method of producing a low-pressure mercury vapor discharge lamp | Rein W. van der Wolf | 1982-04-13 |