Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4338491 | Compatible AM stereophonic system | Norman W. Parker | 1982-07-06 |
FH
Francis H. Hilbert
Overall (1982): #65,371 of 81,411Top 85%
1
Patents 1982