Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4614136 | Angularly adjustable mandrel assembly | — | 1986-09-30 |
| 4422356 | Cutting tool bit holder | — | 1983-12-27 |
| D264678 | Pipe end preparation tool | Henry Astle | 1982-06-01 |
| 4319503 | Tube facing machine | Thomas W. Saine | 1982-03-16 |
| 4246814 | Elbow mandrel | — | 1981-01-27 |
| 4207786 | Cam follower tool arrangement | William H. Astle | 1980-06-17 |