Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4469124 | Gas shut-off valve | Dennis B. Clark, Jeffrey A. McKeen | 1984-09-04 |
| 4437347 | Shut-off actuating device | Dennis B. Clark, Jeffrey A. McKeen, William A. Przybylski | 1984-03-20 |