Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5358343 | Keyboard with transversely activated non-alphanumeric keys | — | 1994-10-25 |
| 5313826 | Engine misfire, knock or roughness detection method and apparatus | Erik B. Vigmostad, Frederick P. Sprague, Joseph V. Mandarino | 1994-05-24 |
| 5287735 | Engine misfire or roughness detection method and apparatus | Erik B. Vigmostad | 1994-02-22 |