Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5361299 | Exchange apparatus enclosing a plurality of extension terminals and connecting an extension terminal to a line wire | — | 1994-11-01 |
| 5331667 | Telephone exchange apparatus with communication line clocking | — | 1994-07-19 |
| 5305348 | Spread-spectrum communication apparatus | — | 1994-04-19 |
| 5291549 | Private branch exchange and line exchange method | — | 1994-03-01 |