Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5004428 | Vacuum system attachment | — | 1991-04-02 |
| D315043 | Central vacuum system hose handle | — | 1991-02-26 |
| D313096 | Vacuum hose handle for a central vacuum system | — | 1990-12-18 |
| 4915640 | Central vacuum system apparatus | — | 1990-04-10 |
| 4758170 | Current carrying inlet valve for central vacuum system | — | 1988-07-19 |