Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6980804 | Automatic changeover system for communication networks which changes over from one communication network to another, an automatic changeover station for the same and an automatic changeover method of communication networks | Yoshikazu Kobayashi | 2005-12-27 |