Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6662905 | Elevator which counterweight is also the plunger of the propelling fluid dynamic device which produces and controls the movements thereof | — | 2003-12-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6662905 | Elevator which counterweight is also the plunger of the propelling fluid dynamic device which produces and controls the movements thereof | — | 2003-12-16 |