Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5671635 | Method and apparatus for monitoring of spring pack displacement of a motor-operated valve | John L. Lewis, Roger W. Carr, Bryan E. Prather | 1997-09-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5671635 | Method and apparatus for monitoring of spring pack displacement of a motor-operated valve | John L. Lewis, Roger W. Carr, Bryan E. Prather | 1997-09-30 |