Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5307258 | Process for converting a first AC signal into a second AC signal and a converter for performing the process | — | 1994-04-26 |
| 4280037 | Apparatus for cashless payment of merchandise or services | — | 1981-07-21 |
| 4266122 | Method and apparatus for identification of documents | — | 1981-05-05 |