Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5612263 | Glass composition for a lamp envelope of a black light blue lamp | Bartholomeus Filmer | 1997-03-18 |
HV
Henderikus De Vroome
Overall (1997): #143,872 of 185,788Top 80%
1
Patents 1997