Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835478 | Method and apparatus for acoustic detection of faults in underground cables | Merrill K. Haddon | 1989-05-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835478 | Method and apparatus for acoustic detection of faults in underground cables | Merrill K. Haddon | 1989-05-30 |