Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4392213 | Current impulse method and apparatus for testing geophone strings | Edward Kung | 1983-07-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4392213 | Current impulse method and apparatus for testing geophone strings | Edward Kung | 1983-07-05 |