Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4580378 | Anchor assembly for tilt-up wall section | David L. Kelly | 1986-04-08 |
| 4516875 | Concrete slab key joint forming strip and supporting stake therefor | — | 1985-05-14 |
| 4468149 | Assembly for anchoring an element to a slab | David L. Kelly | 1984-08-28 |