Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4593159 | Base plate for telephone set base | Eugene W. Charchanko, Gerd Kuhfus | 1986-06-03 |
| 4556763 | Simplified line switch for a telephone set | Gerd Kuhfus, Charles R. S. Walker | 1985-12-03 |
| 4188513 | Electret microphone with simplified electrical connections by printed circuit board mounting | Ronald J. Morrell, Beverley W. Gumb | 1980-02-12 |