Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D366849 | Audible alarm for security units | Terence K. A. Smith | 1996-02-06 |
| D294319 | Portable adjustable back support | John D. G. Troup, James Walkingshaw, Peter D. G. Dean | 1988-02-23 |