Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872818 | Rotary pump having alternating pistons controlled by non-circular gears | — | 1989-10-10 |
AT
Akira Takami
Overall (1989): #134,353 of 140,708Top 100%
1
Patents 1989