Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10305852 | Telephone system, exchange, telephone exchanging method, and telephone exchanging program | — | 2019-05-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10305852 | Telephone system, exchange, telephone exchanging method, and telephone exchanging program | — | 2019-05-28 |