Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4331901 | Electric incandescent lamp | Bertus de Vrijer, Jan de Ridder | 1982-05-25 |
LE
Leonard C. H. Eijkelenboom
Overall (1982): #46,549 of 81,411Top 60%
1
Patents 1982