| |
Class Information
Number: 55/DIG.8
Name: Gas separation > Built-in vacuum cleaners
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7566354 |
Bag in, bag out filter assembly |
Jul. 28, 2009 |
| 7485167 |
Shaker mechanism for vacuum cleaner filter bag |
Feb. 3, 2009 |
| 7168126 |
Central vacuum cleaner having an energy recovery ventilator system |
Jan. 30, 2007 |
| 7080425 |
Vacuum canister and mounting bracket for use therewith |
Jul. 25, 2006 |
| 7010829 |
Retractable hose central vacuum cleaning system apparatus and method |
Mar. 14, 2006 |
| 6508850 |
Clean air tent system |
Jan. 21, 2003 |
| 6365119 |
Method of operating a catalytic converter |
Apr. 2, 2002 |
| 5125125 |
Central suction cleaning installation with water flushing and double rinsing |
Jun. 30, 1992 |
| 4721516 |
Central vacuum cleaning installation with water flushing |
Jan. 26, 1988 |
| 4553991 |
Centralized suction cleaning installations |
Nov. 19, 1985 |
| 3942963 |
Vacuum cleaning system |
Mar. 9, 1976 |
|
|
|
