Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5372192 | Drag block for increasing the fluid resistance of well production tubing inadvertently dropped in a cased hole of an oil or gas well | — | 1994-12-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5372192 | Drag block for increasing the fluid resistance of well production tubing inadvertently dropped in a cased hole of an oil or gas well | — | 1994-12-13 |