Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4501115 | Traction type elevator system | Katsuhiko Suzuki | 1985-02-26 |
SN
Seihachi Naganuma
Tokyo Rope Mfg. Co.: 1 patents #38 of 144Top 30%
Overall (All Time): #4,010,597 of 4,157,543Top 100%
1
Patents All Time