Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4700177 | Sound generating apparatus with sealed air chamber between two sounding plates | Toru Nakashima, Haruhiko Inoue | 1987-10-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4700177 | Sound generating apparatus with sealed air chamber between two sounding plates | Toru Nakashima, Haruhiko Inoue | 1987-10-13 |