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Vibrating air filter for robotic vacuums
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Patent number 11,684,886
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Issue date Jun 27, 2023
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AI Incorporated
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Ali Ebrahimi Afrouzi
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Automatic filter cleaning system
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Patent number 10,596,508
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Issue date Mar 24, 2020
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PRODUCTEERS A/S
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Holger Krogsgaard
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Sweeping machine
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Patent number 9,220,387
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Issue date Dec 29, 2015
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Alfred Kärcher GmbH & Co. KG
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Frank Nonnenmann
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Integral vacuum fan housing
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Patent number 8,562,704
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Issue date Oct 22, 2013
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Tennant Company
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Kurt Clarence Adelman
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Road sweeper
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Patent number 8,505,161
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Issue date Aug 13, 2013
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Alfred Kärcher GmbH & Co. KG
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Roland Schick
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Hand-guided sweeping machine
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Patent number 4,974,283
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Issue date Dec 4, 1990
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Hako-Werke GmbH & Co.
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Heinz Holsten
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Vacuum cleaning water separator
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Patent number 4,934,021
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Issue date Jun 19, 1990
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U.S. Philips Corp.
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Gerard J. Lenting
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Modular carpet cleaning apparatus
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Patent number 4,686,735
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Issue date Aug 18, 1987
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Eldred E. Soeffker
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Floor maintenance machine and method
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Patent number 4,586,208
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Issue date May 6, 1986
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Tennant Company
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Donald S. Trevarthen
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Walk behind floor maintenance machine
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Patent number 4,580,313
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Issue date Apr 8, 1986
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Tennant Company
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Michael L. Blehert
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Recycling cleaning apparatus
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Patent number 4,466,155
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Issue date Aug 21, 1984
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Dale L. Grave
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Sweeper hopper with filter assembly
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Patent number 4,328,014
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Issue date May 4, 1982
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The Scott & Fetzer Company
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Jack L. Burgoon
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3304572
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Patent number 3,304,572
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Issue date Feb 21, 1967
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3065493
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Patent number 3,065,493
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Issue date Nov 27, 1962
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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3060485
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Patent number 3,060,485
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Issue date Oct 30, 1962
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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2972769
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Patent number 2,972,769
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Issue date Feb 28, 1961
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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2889006
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Patent number 2,889,006
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Issue date Jun 2, 1959
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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2784440
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Patent number 2,784,440
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Issue date Mar 12, 1957
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2407408
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Patent number 2,407,408
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Issue date Sep 10, 1946
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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2202223
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Patent number 2,202,223
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Issue date May 28, 1940
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING