Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4293940 | Time sound generating device | Satoshi Noguchi | 1981-10-06 |
TK
Takaya Kitao
Overall (All Time): #4,098,267 of 4,157,543Top 100%
1
Patents All Time