Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862020 | Electronic delay control circuit having pulse width maintenance | Clarence E. Cowan | 1989-08-29 |
RC
Ronald Kurt Christensen
Overall (1989): #64,167 of 140,708Top 50%
1
Patents 1989