Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4559708 | Method and apparatus for the measurement of the internal circumference of compliant rings | Don M. Duel | 1985-12-24 |
| 4513175 | Automatic calling systems for accessing communications networks | — | 1985-04-23 |
| 4468529 | Programmable automatic calling systems | Richard I. Samuel | 1984-08-28 |
| 4438296 | Multimessage automatic telephone polling methods and apparatus | — | 1984-03-20 |
| 4356348 | Techniques for detecting a condition of response on a telephone line | — | 1982-10-26 |
| 4201896 | Telephone polling apparatus using a plurality of timers to detect the line conditions | David S. Bower | 1980-05-06 |
| 4188510 | Telephone sequential number dialer with number incrementing | David S. Bower | 1980-02-12 |