Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642416 | AM broadcast band interference filter for line-powered telephone | Noel Pratt | 1997-06-24 |
RH
Ralph L. Hill
Overall (1997): #91,274 of 185,788Top 50%
1
Patents 1997