Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5334268 | Method of producing high strength sucker rod coupling | Dean E. Hermanson, Donald F. Hallden | 1994-08-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5334268 | Method of producing high strength sucker rod coupling | Dean E. Hermanson, Donald F. Hallden | 1994-08-02 |