"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 7950102 | Upright vacuum cleaner having steering unit An upright vacuum cleaner having a steering unit is provided. The upright vacuum cleaner includes a cleaner body having a suction motor and a dust separating and collecting unit, a suction port assembly rotatably connected to a lower portion of the cleaner body, a h... | 05/31/2011 |
| 7752706 | Bagger attachment for leaf blower The bagger attachment for a leaf blower has a large container that accommodates full size trash bags. The container is a barrel mounted on a wheeled cart and includes a cover that is hinged to the container and securely closed by a C-clamp. The exhaust conduit of a ... | 07/13/2010 |
| 7356873 | Highly efficient autonomous vacuum cleaner The invention provides a vacuum cleaner comprising in particular a structure mounted on transport members (R, R′) and carrying an electrically-driven turbine (T) for acting through a filter membrane (M) to establish suction in a collector (S) of particles picked u... | 04/15/2008 |
| 6536073 | Electric vacuum cleaner An electric cleaner provided with a main body comprised of a cleaner housing (20) equipped with wheels (27) for mobility on a floor surface. Both side surfaces of the main body extend outwardly beyond rim portions (35) of the respective wheels (27) that s... | 03/25/2003 |
| 6141822 | Vacuum cleaner for household refuse The invention concerns a vacuum cleaner including an internal structure with a motor (12a) driving an air sucking turbine (12) located in a downstream chamber (16) communicating with an upstream chamber (15) containing means (13, 26) for filtering the air... | 11/07/2000 |
| 5842254 | Dual mode vacuum cleaner Disclosed is a dual mode vacuum cleaner which can be used as both a canister mode cleaner and an upright mode cleaner. The cleaner can be easily converted from the canister mode to the upright mode or vice versa by simple handling. The cleaner has a body ... | 12/01/1998 |