Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4380271 | Earth auger with removable cutting tooth support structure | Donald R. Baker, Paul Smith | 1983-04-19 |
| 4373594 | Rotary drill bit | — | 1983-02-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4380271 | Earth auger with removable cutting tooth support structure | Donald R. Baker, Paul Smith | 1983-04-19 |
| 4373594 | Rotary drill bit | — | 1983-02-15 |