Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4909085 | Mechanical property testing machine | Joe E. Greenslade | 1990-03-20 |
| 4864866 | Mechanical property testing machine | Joe E. Greenslade | 1989-09-12 |
| 4538484 | Power torque wrench tool | William E. Van Steenwyk | 1985-09-03 |
| 4494412 | Testing tool for studs and the like | — | 1985-01-22 |
| 4333679 | Vehicle top transported, self contained camper | William E. Van Steenwyk | 1982-06-08 |