Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D494662 | Vent for septic system | William M. Traut | 2004-08-17 |
| D493511 | Vent for septic system | William M. Traut | 2004-07-27 |
| D492752 | Vent for septic system | William M. Traut | 2004-07-06 |