Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4509072 | Digital circuit for providing a binary signal on the occurrence of a predetermined frequency ratio of two signals | Herbert Elmis | 1985-04-02 |
| 4454531 | Digital circuit for providing a binary signal on the occurrence of a predetermined frequency ratio of two signals | Herbert Elmis | 1984-06-12 |