Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4224483 | Electronic loaded/nonloaded telephone loop identification circuit | Richard Sparber | 1980-09-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4224483 | Electronic loaded/nonloaded telephone loop identification circuit | Richard Sparber | 1980-09-23 |