Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7991820 | One step binary summarizer | — | 2011-08-02 |
| D316824 | Telephone line tester | Charles E. Grafton | 1991-05-14 |
| D314926 | Portable line tester or similar article | — | 1991-02-26 |