Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687754 | Automatic drain valve with internal pressure booster valve | Leonard R. Nemeth, William S. Stumphauzer | 1997-11-18 |
| 5660509 | Key duplicating machine with bottom clearance | Stephan W. Cole, Ronald B. Berringer, Eric R. Hammonds, Michael Koubek, Anthony Nicholas +4 more | 1997-08-26 |
| 5651586 | Laterally adjustable armrest for a chair | — | 1997-07-29 |