Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8074671 | Self-cleaning valves for use in vacuum cleaners and other self-cleaning valves | Charles A. Castronovo | 2011-12-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8074671 | Self-cleaning valves for use in vacuum cleaners and other self-cleaning valves | Charles A. Castronovo | 2011-12-13 |