Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5033083 | Telephone line switch apparatus | James F. Oneby | 1991-07-16 |
| 4859820 | Quiet key switch | Stephen L. Kay, Hartland P. Klotz, Robert M. Wentzel | 1989-08-22 |
| D278239 | Stand-alone keyboard | Christian J. Felix, Donald M. Genaro | 1985-04-02 |