Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6422179 | Water heater flue system | Dennis R. Hughes, Marc W. Akkala, Kevin Field | 2002-07-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6422179 | Water heater flue system | Dennis R. Hughes, Marc W. Akkala, Kevin Field | 2002-07-23 |