Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6230847 | "Flashing ""door open"" button for an elevator car" | — | 2001-05-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6230847 | "Flashing ""door open"" button for an elevator car" | — | 2001-05-15 |