| Patents for A47L 11 - Machines for cleaning floors, carpets, furniture, walls, or wall coverings (10,776) |
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| 10/02/1991 | EP0448804A1 Housing and collecting device of washing liquids for washing machines used for floorings and wide surfaces |
| 09/25/1991 | EP0447627A1 Vacuum cleaner ancillary device |
| 09/24/1991 | US5050530 Liquid applicator |
| 09/24/1991 | US5050262 Floor maintenance brush or the like |
| 09/24/1991 | CA1289608C Electrical household appliance for steam cleaning |
| 09/17/1991 | US5048148 Carpet cleaning apparatus |
| 09/17/1991 | US5048141 Floor-cleaning machine with improved brush pressure control |
| 09/11/1991 | EP0174312B1 Machine for cleaning surfaces such as carpets, floors and the like |
| 09/03/1991 | US5045118 Method of removing debris and dust from a carpet |
| 09/03/1991 | US5044043 Speed and steering control for a floor maintenance machine |
| 08/27/1991 | CA1287952C Self-propelled upright vacuum cleaner having a remotely disposed transmission and a positive locking mechanism |
| 08/22/1991 | DE4101489A1 Cleaning machine for surface cleaning appliances - has swivel mounted tool holders to adapt to surface contours |
| 08/20/1991 | CA1287713C Apparatus for wet cleaning a floor or wall surface |
| 08/13/1991 | US5038484 Apparatus for determining an area coverage rate |
| 08/13/1991 | CA1287456C Debris pan for rotary brush sweeper |
| 08/06/1991 | CA1287340C Fluid control valve |
| 07/31/1991 | CN2081708U Mopping machine for floor |
| 07/30/1991 | US5035154 Adjustment mechanism for a friction drive unit |
| 07/25/1991 | WO1991011134A1 Mopsweeping apparatus with continuous action |
| 07/25/1991 | CA2056419A1 Mopsweeping apparatus with continuous action |
| 07/24/1991 | EP0437466A1 Apparatus for wet cleaning of floors. |
| 07/23/1991 | US5033564 Power riding trailer for an implement |
| 07/16/1991 | US5032775 Control apparatus for plane working robot |
| 07/16/1991 | US5031277 Debris collecting and bagging apparatus |
| 07/15/1991 | CA2007797A1 Maint-vac |
| 07/10/1991 | EP0435930A1 Cleaning head. |
| 07/03/1991 | EP0435414A1 Vehicle engine mounting system |
| 07/03/1991 | EP0434907A2 Floor-scrubbing machine |
| 06/26/1991 | EP0433515A1 Floor, wall and ceiling washing, rinsing and drying machine |
| 06/26/1991 | EP0433285A1 Asbestos removal method and system |
| 06/25/1991 | US5025523 Apparatus for remotely decontaminating reactor cavity walls |
| 06/19/1991 | CN2079014U Special broom for public bus |
| 06/13/1991 | WO1991007902A1 Method of and means for treating a floor |
| 06/12/1991 | CN2078591U Device for automatic cleaning the floor of passenger trains |
| 06/04/1991 | US5020620 Offsetting the course of a laser guided vehicle |
| 05/29/1991 | EP0428911A1 Cleaning machine |
| 05/28/1991 | CA1284407C Method for dry carpet cleaning |
| 05/25/1991 | CA2020914A1 Method of and means for treating a floor |
| 05/21/1991 | US5016313 Surface finishing device |
| 05/21/1991 | US5016310 Floor scrubber having laterally variable scrub brush position |
| 05/08/1991 | EP0426094A1 Cleaning machine |
| 05/08/1991 | DE3936861A1 Ventilation valve for containers of fluids prone to foaming - has cylindrical body with upper and lower outlets and moving ball which rests on stops at base and seals upper outlet during foaming |
| 05/07/1991 | US5013333 Such as vacuum cleaners and rotary broom sweepers |
| 05/07/1991 | US5012886 Self-guided mobile unit and cleaning apparatus such as a vacuum cleaner comprising such a unit |
| 04/24/1991 | EP0424229A1 Machine and method using the machine for cleaning a surface |
| 04/24/1991 | EP0424070A1 Cryogenic treatment methods and apparatus |
| 04/18/1991 | WO1991004701A1 Floor polishing machine |
| 04/17/1991 | EP0422977A1 Vacuum squeege device for removing dirty water from cleaned surfaces |
| 04/16/1991 | US5007210 Device capable of suction-adhering to a wall surface and moving therealong |
| 04/14/1991 | CA2027324A1 Suction device with a squeegee for eliminating dirty water while cleaning certain surfaces |
| 04/10/1991 | CN2074618U Multifunctional electric scrubbing and washing device |
| 04/09/1991 | CA1282736C Adjustable applicator for dispensing and storing particulate carpet-cleaning compositions |
| 04/03/1991 | EP0420447A2 Ofsetting the course of a laser guided vehicle |
| 03/27/1991 | EP0418485A1 Floor coating agent applying machine and construction of its applying unit |
| 03/27/1991 | CN2073724U Pushing-driven handy indoor floor-sweeping device |
| 03/27/1991 | CN2073723U Polishing machine for smoothing surfacing cleaning |
| 03/27/1991 | CN2073722U Fast convenient clothes cleaning device |
| 03/21/1991 | WO1991003977A1 Surface treatment |
| 03/21/1991 | CA2066562A1 Surface treatment |
| 03/19/1991 | US5001635 Vehicle |
| 03/19/1991 | US4999871 Device for fixing a fibrous material pad and a surface cleaning machine equipped with said device |
| 03/13/1991 | CN1049780A Desk top cleaner |
| 03/12/1991 | US4998314 Combination of a bonnet and a base member for a rotary cleaning machine |
| 03/06/1991 | EP0415563A1 Floor scrubber having laterally variable scrub brush position |
| 02/27/1991 | CN2071943U Multipurpose electric wax polisher with rolling brush |
| 02/19/1991 | CA1280260C Recovery chamber for spray-type, vacuum cleaning apparatus |
| 02/12/1991 | US4991254 Cleaning system |
| 02/05/1991 | US4989293 Tennis court drying machine |
| 02/05/1991 | US4989288 Fork-lift |
| 01/29/1991 | US4987631 Fit a forklift truck |
| 01/22/1991 | US4986378 Machine configuration and method for steering a vehicle away from a wall |
| 01/17/1991 | DE4021555A1 Machine-driven cleaning brush for floors and walls - has three sets of bristles protruding from horizontal, inclined and vertical holes in rim of plate |
| 01/15/1991 | US4984328 Drip cleaner attachment with solid cleaning concentrate |
| 01/15/1991 | CA1278921C Floor treatment machine |
| 01/02/1991 | CA1278405C Floor polishing machine |
| 12/27/1990 | EP0404437A1 Speed and steering control for scrubbers and the like |
| 12/27/1990 | EP0404279A2 Apparatus with removable container for cleaning machine |
| 12/27/1990 | EP0404278A2 Floor washing apparatus |
| 12/25/1990 | US4980815 Apparatus for applying lane dressing to a bowling lane |
| 12/25/1990 | US4979260 Hand-guided sweeping machine |
| 12/20/1990 | DE4016887A1 Carpet cleaning machine with plate-like sponge - has underneath recesses allowing sponge to protrude as effective cleaning beads |
| 12/19/1990 | EP0403077A1 Floor cleaning device |
| 12/19/1990 | EP0402764A2 Control apparatus for plane working robot |
| 12/13/1990 | WO1990014787A1 Washing apparatus |
| 12/11/1990 | US4976005 Cleaning tool with demand-responsive air port |
| 12/08/1990 | WO1990014788A1 Process and autonomous apparatus for the automatic cleaning of ground areas through the performance of programmed tasks |
| 12/08/1990 | CA2058929A1 Process and autonomous apparatus for the automatic cleaning of ground areas through the performance of programmed tasks |
| 12/04/1990 | US4974618 Apparatus and method for fabric cleaning with foam |
| 12/04/1990 | US4974282 Upholstery cleaning system |
| 11/29/1990 | DE4016849A1 Reinigungsvorrichtung Cleaning device |
| 11/28/1990 | CN2066301U Multifunctional cleaner |
| 11/26/1990 | CA2013834A1 Cleaning liquid mixer for a water line, particularly for a surface cleaner |
| 11/22/1990 | EP0398393A2 A drive control |
| 11/21/1990 | CN1047024A Multi-functional floor cleaning device |
| 11/10/1990 | CA2015141A1 Combiation of a bonnet and a base member for a rotary cleaning machine |
| 11/06/1990 | US4968878 Dual bumper-light curtain obstacle detection sensor |
| 11/06/1990 | US4968166 Carpet cleaning machine with foaming control block with heater and brush |
| 11/06/1990 | US4967862 Tether-guided vehicle and method of controlling same |
| 10/31/1990 | CN2064631U Automatic cleaning device for floor |
| 10/30/1990 | US4965905 Apparatus for waxing and polishing |