Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880064 | Torque sensing, automatic shut-off and reset clutch for screwdrivers, nutsetters and the like | Robert A. Willoughby | 1989-11-14 |
| 4844177 | Torque sensing, automatic shut-off and reset clutch for toggle controlled screwdrivers, nutsetters and the like | Richard Drake Robinson, Robert A. Willoughby | 1989-07-04 |