Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8083029 | Device for enabling access to a structure above ground level | — | 2011-12-27 |
| 7931254 | Hoisting device | Rudolf F. Kirst | 2011-04-26 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8083029 | Device for enabling access to a structure above ground level | — | 2011-12-27 |
| 7931254 | Hoisting device | Rudolf F. Kirst | 2011-04-26 |