Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6428292 | Discharge valve | Frank S. Wallis, Walter T. Grassbaugh, Jeffrey L. Berning, Clyde C. Verhoff, Norman G. Beck | 2002-08-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6428292 | Discharge valve | Frank S. Wallis, Walter T. Grassbaugh, Jeffrey L. Berning, Clyde C. Verhoff, Norman G. Beck | 2002-08-06 |