Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848459 | Apparatus for installing a liner within a well bore | Henry W. Blackwell, Clifford Lynn Talley | 1989-07-18 |
| 4830103 | Setting tool for mechanical packer | Henry W. Blackwell, Clifford Lynn Talley | 1989-05-16 |