Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6549109 | Magnet-sensible triggering doorbell mechanism | — | 2003-04-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6549109 | Magnet-sensible triggering doorbell mechanism | — | 2003-04-15 |