Issued Patents 2018
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10101090 | Duct cleaning and valve device for furnace system | Witold Mastek, Jeffrey C. Alexander | 2018-10-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10101090 | Duct cleaning and valve device for furnace system | Witold Mastek, Jeffrey C. Alexander | 2018-10-16 |