Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4321432 | Electrostatic microphone | Hideki Matsutani | 1982-03-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4321432 | Electrostatic microphone | Hideki Matsutani | 1982-03-23 |