Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4188513 | Electret microphone with simplified electrical connections by printed circuit board mounting | Beverley W. Gumb, Algirdas J. Dragunevicius | 1980-02-12 |
RM
Ronald J. Morrell
Overall (All Time): #4,106,240 of 4,157,543Top 100%
1
Patents All Time