Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883123 | Above packer perforate, test and sample tool and method of use | Gary D. Zunkel, Jon B. Christensen | 1989-11-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883123 | Above packer perforate, test and sample tool and method of use | Gary D. Zunkel, Jon B. Christensen | 1989-11-28 |