Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4478111 | Suspension of adjustable pipe spinner | Lawrence E. Wells, Boris A. Kamenster, Preston R. Fox | 1984-10-23 |
| 4203182 | Slip assembly | George I. Boyadjieff | 1980-05-20 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4478111 | Suspension of adjustable pipe spinner | Lawrence E. Wells, Boris A. Kamenster, Preston R. Fox | 1984-10-23 |
| 4203182 | Slip assembly | George I. Boyadjieff | 1980-05-20 |