Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4724424 | Warning chord sound producing apparatus including an integrated circuit | Toru Nakashima, Haruhiko Inoue | 1988-02-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4724424 | Warning chord sound producing apparatus including an integrated circuit | Toru Nakashima, Haruhiko Inoue | 1988-02-09 |