Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4285177 | Reinforced tread assembly | — | 1981-08-25 |
| 4250672 | Externally reinforced concrete stairs | H. James Seegers | 1981-02-17 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4285177 | Reinforced tread assembly | — | 1981-08-25 |
| 4250672 | Externally reinforced concrete stairs | H. James Seegers | 1981-02-17 |