Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4193256 | Digital clocks provided with time switch mechanisms | Shuji Otsuka | 1980-03-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4193256 | Digital clocks provided with time switch mechanisms | Shuji Otsuka | 1980-03-18 |