Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4715456 | Slips for well pipe | Frank E. Poe, Jr., Dan R. Schwertner, Melvyn F. Whitby | 1987-12-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4715456 | Slips for well pipe | Frank E. Poe, Jr., Dan R. Schwertner, Melvyn F. Whitby | 1987-12-29 |