Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862020 | Electronic delay control circuit having pulse width maintenance | Ronald Kurt Christensen | 1989-08-29 |
CC
Clarence E. Cowan
Overall (1989): #125,037 of 140,708Top 90%
1
Patents 1989