Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873052 | Method of manufacturing a scandate dispenser cathode and scandate dispenser cathode manufactured according to the method | Jan Hasker, Johannes van Esdonk | 1989-10-10 |
WK
Wim Kwestroo
Overall (1989): #137,894 of 140,708Top 100%
1
Patents 1989