Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5892887 | Electric water heater with a pair of interconnected heating chambers having concentric copper tube structures | William Thomas | 1999-04-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5892887 | Electric water heater with a pair of interconnected heating chambers having concentric copper tube structures | William Thomas | 1999-04-06 |