Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5187743 | Telephone base with a display unit | Beverley W. Gumb, James Schmidt | 1993-02-16 |
| 5130629 | Telephone terminal bases | — | 1992-07-14 |
| 4887972 | Snap-together enclosure for a telephone jack receptacle | Kenneth W. McLean, Charles R. S. Walker | 1989-12-19 |
| 4672666 | Telephone handset for a telephone set | — | 1987-06-09 |
| 4647728 | Programming switch assembly for communication terminals | Laurence J. Retallack | 1987-03-03 |
| 4636591 | Integral transmitter and modular jack assembly for a telephone set | Charles R. S. Walker, Anthony H. J. Robinson | 1987-01-13 |
| 4593159 | Base plate for telephone set base | Eugene W. Charchanko, Algirdas J. Dragunevicius | 1986-06-03 |
| 4556763 | Simplified line switch for a telephone set | Algirdas J. Dragunevicius, Charles R. S. Walker | 1985-12-03 |
| 4349705 | Lighted telephone dial | — | 1982-09-14 |
| 4317968 | Multiple cantilever spring contact switch | — | 1982-03-02 |