Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7992904 | Sealing mechanism for ductwork | Douglas G. Gudenburr, Christopher A. Armstrong, Andrew J. Male | 2011-08-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7992904 | Sealing mechanism for ductwork | Douglas G. Gudenburr, Christopher A. Armstrong, Andrew J. Male | 2011-08-09 |