Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653423 | Knife gate valve with mechanically retained gate seat | Calvin Young, David L. Gambetta, Jon A. Hansen, Darrel J. DesRochers, Richard A. Sutherland | 1997-08-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653423 | Knife gate valve with mechanically retained gate seat | Calvin Young, David L. Gambetta, Jon A. Hansen, Darrel J. DesRochers, Richard A. Sutherland | 1997-08-05 |