Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5060751 | Pneumatic wall-locking geophone system | Harland L. Kuhlman, Calvin L. Cumerlato | 1991-10-29 |
| 4253063 | Impedance measuring method of and apparatus for detecting escaping leach solution | — | 1981-02-24 |