Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849688 | Detection of single-frequency signals | Charles Walden, Joseph Grecco, Jeffrey I. Feinstein | 1989-07-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849688 | Detection of single-frequency signals | Charles Walden, Joseph Grecco, Jeffrey I. Feinstein | 1989-07-18 |