Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4414257 | Elevator panel | Kousuke Haraga | 1983-11-08 |
KH
Katsutoshi Hattori
Denki Kagaku Kogyo: 1 patents #291 of 655Top 45%
Overall (All Time): #4,060,510 of 4,157,543Top 100%
1
Patents All Time