Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4279308 | Surface casing stabilizer and hanger and method of employing the same | Charles Ernest Gray | 1981-07-21 |
| 4275488 | Combined well casing spider and elevator | Charles Ernest Gray | 1981-06-30 |