Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857709 | Electric cooking unit having an electric lamp with a helical filament contact with the lamp vessel wall | Eduard J. P. Janssen | 1989-08-15 |
VN
Victor R. Notelteirs
Overall (1989): #46,462 of 140,708Top 35%
1
Patents 1989