Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4621403 | Apparatus and method for inserting coiled tubing | Tommy K. Griffin | 1986-11-11 |
| 4317384 | Manual override drive apparatus | Douglas G. Calvin | 1982-03-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4621403 | Apparatus and method for inserting coiled tubing | Tommy K. Griffin | 1986-11-11 |
| 4317384 | Manual override drive apparatus | Douglas G. Calvin | 1982-03-02 |