Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4676135 | Vibration plate for music box movement | Mikio Shibagaki, Motonori Usui | 1987-06-30 |
| 4543870 | Drum for music box | — | 1985-10-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4676135 | Vibration plate for music box movement | Mikio Shibagaki, Motonori Usui | 1987-06-30 |
| 4543870 | Drum for music box | — | 1985-10-01 |