Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4181197 | AC elevator speed control system | Muneo Nishiwaki | 1980-01-01 |
TT
Tomio Tanabe
Overall (All Time): #4,103,367 of 4,157,543Top 100%
1
Patents All Time