Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7975809 | Method and arrangement for preventing disturbing noise caused by the counterweight of an elevator | — | 2011-07-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7975809 | Method and arrangement for preventing disturbing noise caused by the counterweight of an elevator | — | 2011-07-12 |