Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4637787 | Hydraulic screw machine | — | 1987-01-20 |
| 4623305 | Device for pumping oil | — | 1986-11-18 |
| 4242067 | Hydraulic screw machine with balance plunger | — | 1980-12-30 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4637787 | Hydraulic screw machine | — | 1987-01-20 |
| 4623305 | Device for pumping oil | — | 1986-11-18 |
| 4242067 | Hydraulic screw machine with balance plunger | — | 1980-12-30 |