Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4442324 | Encapsulated backplate for electret transducers | Senior N. Blanchard, George C. Tibbetts, Joseph A. Sawyer | 1984-04-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4442324 | Encapsulated backplate for electret transducers | Senior N. Blanchard, George C. Tibbetts, Joseph A. Sawyer | 1984-04-10 |