Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809844 | Tubular belt conveyor | Kunio Hashimoto | 1989-03-07 |
HO
Haruo Okazaki
Overall (1989): #107,989 of 140,708Top 80%
1
Patents 1989