Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818999 | Method and apparatus for measuring frequency and phase difference | Herbert S. Kobayashi, Christopher L. Lichtenberg, Paul W. Shores | 1989-04-04 |
AC
Allen R. Cunningham
Overall (1989): #133,868 of 140,708Top 100%
1
Patents 1989