Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6389950 | Manually controlled lifting device with a pneumatic lift drive mechanism | Robert Kuhn | 2002-05-21 |
| 6276216 | Pneumatic lifting device with integrated apparatus for measuring a tensile force | Robert Kuhn | 2001-08-21 |
| 6073496 | Load hoisting apparatus | Robert Kuhn | 2000-06-13 |