Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832157 | Displaying device for elevator | — | 1989-05-23 |
MK
Mamoru Kitano
Overall (1989): #80,568 of 140,708Top 60%
1
Patents 1989