Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4901340 | System for the extended provision of cellular mobile radiotelephone service | Terry S. Parker, Harold Grant Saroka, Edward Lawrence Didion, Elmer Lyle, Randall L. Crouse | 1990-02-13 |
| 4707850 | Test apparatus for a subscriber line | Joseph B. Roberts | 1987-11-17 |
| 4707851 | Remote isolation test apparatus | Joseph B. Roberts | 1987-11-17 |