Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5363510 | Pressure relief vent for a waste holding tank | — | 1994-11-15 |
| 5318275 | Portable waste holding tank with improved inlet valve assembly | Charles L. Sargent, John A. Hoffman, John M. Antos | 1994-06-07 |