Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5203127 | Earth anchor | John R. Olthoff, Wayne Nichols, Charles L. Duncan | 1993-04-20 |
| 4970835 | Wall anchoring device and method of installation | — | 1990-11-20 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5203127 | Earth anchor | John R. Olthoff, Wayne Nichols, Charles L. Duncan | 1993-04-20 |
| 4970835 | Wall anchoring device and method of installation | — | 1990-11-20 |