Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8069955 | Elevator and traction sheave of an elevator | Esko Aulanko, Jorma Mustalahti, Pekka Rantanen | 2011-12-06 |
| 8020669 | Elevator and traction sheave of an elevator | Esko Aulanko, Jorma Mustalahti, Pekka Rantanen | 2011-09-20 |