Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11100775 | Doorbell system, location notification system, and intercom system | Kazuma Wakabayashi | 2021-08-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11100775 | Doorbell system, location notification system, and intercom system | Kazuma Wakabayashi | 2021-08-24 |