Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4696135 | Method and apparatus for constructing towers | Mark E. Killion | 1987-09-29 |
| 4277052 | Jacking apparatus | — | 1981-07-07 |
| 4238115 | Jacking device | — | 1980-12-09 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4696135 | Method and apparatus for constructing towers | Mark E. Killion | 1987-09-29 |
| 4277052 | Jacking apparatus | — | 1981-07-07 |
| 4238115 | Jacking device | — | 1980-12-09 |