Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4296321 | Bit pressure gauge for well drilling | Donald W. Blincow, Kevin H. Cassedy | 1981-10-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4296321 | Bit pressure gauge for well drilling | Donald W. Blincow, Kevin H. Cassedy | 1981-10-20 |