Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681148 | Vacuum/holding tank | James A. Sigler, Edward McKiernan | 1997-10-28 |
| 5621924 | Vacuum tank construction for a vacuum toilet assembly | James A. Sigler | 1997-04-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681148 | Vacuum/holding tank | James A. Sigler, Edward McKiernan | 1997-10-28 |
| 5621924 | Vacuum tank construction for a vacuum toilet assembly | James A. Sigler | 1997-04-22 |