Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5353569 | Construction block with guiding system for walls | — | 1994-10-11 |
| 5282700 | Block interlock offsetting key for use in the construction of a retaining wall | — | 1994-02-01 |