Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7975527 | Explosion indicators for use in explosion-proof enclosures with critical equipment | — | 2011-07-12 |
| 7952039 | System and method for actuating one or more sliders | Clifford Randy Helmer | 2011-05-31 |