Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6178590 | Vacuum cleaner cannister with removable bag | Winston S. Lindsay, III | 2001-01-30 |
| 5926908 | Acoustic communicator for central vacuum cleaners | — | 1999-07-27 |
| 5924164 | Acoustic communicator for central vacuum cleaners | — | 1999-07-20 |