| Patents for A47L 1 - Cleaning windows (4,862) |
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| 04/11/1990 | CN2055709U Cleaner for window |
| 03/27/1990 | US4910825 Liquid applicator attachment for a squeegee |
| 03/20/1990 | US4908903 Device for cleaning a spherical dome |
| 03/20/1990 | US4908900 Folding cleaning tool |
| 03/14/1990 | CN2054298U Pocket cleaning unit |
| 03/01/1990 | DE3903040A1 Method and device for the internal cleaning of insulating-glass panes |
| 02/28/1990 | CN2053497U Automatic window wiper |
| 02/21/1990 | CN2053082U Electric cleaner for door and window |
| 01/31/1990 | EP0353107A1 Multiple purpose cleaning device, in particular for vehicle windows and similar objects |
| 01/31/1990 | CN2051850U 窗刷 Window Brush |
| 01/31/1990 | CN2051849U Cleaner for plane glass |
| 01/23/1990 | CA1264513A1 Molded brush block with integral squeege |
| 01/17/1990 | CN2051089U Cleaning appliance for window glass |
| 01/16/1990 | US4893373 Manual wiper |
| 01/16/1990 | US4893370 Hand tool for cleaning smooth surfaces, in particular panes of glass |
| 01/10/1990 | CN2050735U Two-side glass cleaning device with falling-proof function |
| 01/03/1990 | CN2050308U Adsorption hook with multiple suckers |
| 12/20/1989 | CN2049515U Magnetic glass wipe for tall building |
| 12/20/1989 | CN2049488U Multifunction cleaning brush |
| 12/19/1989 | US4887713 Window washer caddy |
| 12/12/1989 | US4885815 Powered cleaning tools |
| 11/29/1989 | CN2048341U Cleaning machine for window glass |
| 11/22/1989 | CN2047932U Hand glass washing apparatus |
| 11/22/1989 | CN2047931U Glass cleaning device |
| 11/16/1989 | WO1989010721A1 Improved device for cleaning surfaces |
| 11/15/1989 | CN2047544U Multi-functional window-cleaning means |
| 11/01/1989 | CN2046739U Automatic reciprocation cleaner for window glass |
| 10/18/1989 | CN2045985U Liquid-spraying electric wiper |
| 10/04/1989 | CN2045257U Magneto-controlled two-side homologous type glass wiper |
| 10/03/1989 | US4871275 Window washing device |
| 10/03/1989 | US4870712 Ice/snow scraping system |
| 08/30/1989 | CN2043488U Magnetic window-cleaning tool |
| 08/22/1989 | US4858267 Apparatus for wet cleaning in particular window panes |
| 08/17/1989 | DE3803257A1 Jointed head for the handle of a cleaning implement |
| 08/17/1989 | DE3803256A1 Hand implement for cleaning smooth surfaces, in particular glass panes |
| 08/15/1989 | US4856929 Interior clamping device for tubular poles |
| 07/26/1989 | EP0325424A2 Aeroplane window polishing device |
| 07/26/1989 | CN2041550U Window-wipping machine |
| 07/18/1989 | US4847938 Cleaning apparatus, particularly for cleaning window panes |
| 07/12/1989 | CN2040764U Glass wiper |
| 07/05/1989 | CN2040360U Synchronous window cleaner |
| 06/28/1989 | CN2039956U 磁性刷 Magnetic Brush |
| 06/28/1989 | CN2039955U Double-sided glass cleaner |
| 06/28/1989 | CN2039954U Safety window cleaner with high efficiency |
| 06/21/1989 | CN2039548U Device for cleaning both sides of window glass simultaneously |
| 06/21/1989 | CN2039547U Duster for glass windows |
| 06/15/1989 | WO1989005114A1 Disposable impregnated wipe for cleaning or maintaining hard surfaces |
| 06/15/1989 | DE3840153A1 Method for cleaning a surface, which is exposed to the external atmosphere and is coated with metal oxide, of a pane of glass which is fitted in conjunction with a metal façade lining and/or a metal frame |
| 06/07/1989 | CN2038768U Hand electric multifunctional waxing machine for cleaning window |
| 05/24/1989 | CN2037976U Multi-purpose glass wiper of polished surface |
| 05/17/1989 | CN2037598U Window cleaning machine |
| 05/10/1989 | CN2037211U Window-wipping unit for high buildings |
| 05/10/1989 | CN2037210U Window-wipping unit for high buildings |
| 05/03/1989 | EP0314357A2 An interior clamping device for tubular poles |
| 05/02/1989 | US4825496 Cleaning apparatus |
| 04/19/1989 | CN2036022U Magnetic dual face cleaner for glass |
| 03/29/1989 | EP0309083A1 Cleaning tools |
| 03/29/1989 | EP0309072A1 Cleaning apparatus |
| 03/22/1989 | CN2034430U Cleaning device for window-panes |
| 03/22/1989 | CN2034429U Electric cleaner for window |
| 03/07/1989 | US4809386 Combined manual implement for window snow removal, ice scraping, washing and drying, for vehicles in general |
| 03/07/1989 | US4809384 Horizontally moving automatic outer surface cleaning |
| 03/01/1989 | CN2033245U Machine of cleaning glass with washing function and polishing function and two working heads |
| 02/28/1989 | US4807322 Automobile windshield cleaning tool |
| 02/15/1989 | CN2032443U Convenient window cleaner |
| 02/09/1989 | WO1989000828A1 Window-cleaning installation |
| 02/08/1989 | EP0302343A1 Window-cleaning installation |
| 02/08/1989 | EP0302200A2 Method and device for cleaning the inner surfaces of composite windows |
| 02/08/1989 | EP0302142A2 Combined manual implement for window snow removal, ice scraping, washing and drying, for vehicles in general |
| 02/08/1989 | CN2032040U Manual simple cleaner for window |
| 02/01/1989 | CN2031652U Electric window wiper |
| 01/31/1989 | US4800607 Apparatus for cleaning windowpanes |
| 01/26/1989 | DE3802402A1 Hand implement for cleaning smooth surfaces, in particular glass panes |
| 01/24/1989 | CA1249109A1 Roughened cleaning sponge particularly for delicate surfaces, and manufacturing method therefor |
| 01/17/1989 | US4797969 Building exterior cleaning apparatus |
| 01/11/1989 | CN2030467U Cleaning device for cleaning both sides of window glass |
| 01/04/1989 | CN2030065U Convenient cleaner for window |
| 11/30/1988 | EP0292709A2 Device for wet cleaning especially window glasses |
| 11/29/1988 | US4787113 Hand-mounted squeegee |
| 11/16/1988 | CN88201345U Electrical wiper |
| 11/09/1988 | CN88211016U 电动擦窗器 Electric window cleaner |
| 10/26/1988 | EP0287598A1 Portable device for cleaning smooth surfaces, in particular window panes |
| 10/19/1988 | EP0286692A1 Apparatus for cleaning plane surfaces |
| 10/18/1988 | US4778301 Compact multi-function glass cleaning device |
| 10/18/1988 | US4778298 Cleaning device having a spray nozzle |
| 10/18/1988 | US4777694 Cleaning appliance |
| 10/11/1988 | US4776716 Cleaning device with pivotable head |
| 09/28/1988 | EP0283811A1 Cleaning device, in particular for window panes |
| 09/13/1988 | US4770712 Method and apparatus for scraping ice and snow and illuminating a scraping area |
| 08/31/1988 | CN87205797U Wiper able to wipe two sides of glass |
| 08/24/1988 | CN86208734U Hidden-chamber door and window and automatic dust removing device for glass |
| 08/18/1988 | DE3740610C1 Method for cleaning the surface, which is exposed to the external atmosphere and is coated with metal oxide, of a glass disc |
| 08/03/1988 | CN87208567U Handy cleaner for window |
| 07/27/1988 | EP0275458A1 Use of wind and/or solar energy for cleaning surfaces, for example windows or solar collector surfaces |
| 06/16/1988 | WO1988004151A1 Use of wind and/or solar energy for cleaning surfaces or keeping same clean, for example windows or solar energy collector surfaces |
| 06/15/1988 | EP0271454A2 Apparatus for the maintenance of facades of buildings particularly of facades having wide glass surfaces |
| 06/07/1988 | US4748711 Ice/snow scraping system |
| 06/01/1988 | CN87212224U Washer |
| 06/01/1988 | CN87203417U Self-pressurized spray cleaner for window |
| 05/31/1988 | US4747175 Frost and ice scraper |