Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4598508 | Device for securing building shafts against forcible entry or passage | — | 1986-07-08 |
| 4485534 | Interchange mechanism for multiple fasteners | Roland J. Pilie, Anthony L. Russo | 1984-12-04 |