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Water-blocking device
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Patent number 11,840,882
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Issue date Dec 12, 2023
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KOREA INSTITUTE OF CIVIL ENGINEERING AND BUILDING TECHNOLOGY
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Dong Sop Rhee
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Ventilator
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Issue date Apr 11, 2000
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Titon Hardware Limited
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Daren Leith
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F24 - HEATING RANGES VENTILATING
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Patent number 5,016,390
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Issue date May 21, 1991
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Daniel B. Johnson
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F24 - HEATING RANGES VENTILATING
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Window structure
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Patent number 4,969,291
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Issue date Nov 13, 1990
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Octavio M. Camara
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Ventilator assemblies
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Patent number 4,736,677
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Issue date Apr 12, 1988
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Titon Hardware Limited
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Nigel R. Smith
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Automatic aeration window
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Patent number 4,702,157
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Issue date Oct 27, 1987
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Jean-Daniel Comparon
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Strip ventilator
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Patent number 4,700,614
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Issue date Oct 20, 1987
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R. W. Simon Limited
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Henryk Dudzik
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F24 - HEATING RANGES VENTILATING
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Valves
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Patent number 4,475,324
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Issue date Oct 9, 1984
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Kva-Spil Limited
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Egil Flakk
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F24 - HEATING RANGES VENTILATING
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Thermal break ventilator unit
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Patent number 4,186,656
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Issue date Feb 5, 1980
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Wausau Metals Corporation
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Ronald J. Weber
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Air relief mechanism
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Patent number 4,048,756
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Issue date Sep 20, 1977
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Raymond Lee Organization, Inc.
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James R. Lawrence
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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3616743
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Patent number 3,616,743
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Issue date Nov 2, 1971
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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3292686
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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2931578
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Patent number 2,931,578
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Issue date Apr 5, 1960
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F24 - HEATING RANGES VENTILATING
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2925769
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Patent number 2,925,769
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Issue date Feb 23, 1960
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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2863182
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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2701515
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Patent number 2,701,515
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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2404807
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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2390394
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Patent number 2,390,394
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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2324043
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Patent number 2,324,043
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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2263796
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Patent number 2,263,796
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Issue date Nov 25, 1941
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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2218887
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Patent number 2,218,887
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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2208718
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Patent number 2,208,718
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Issue date Jul 23, 1940
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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2203311
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Patent number 2,203,311
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Issue date Jun 4, 1940
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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2202685
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Patent number 2,202,685
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Issue date May 28, 1940
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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2182558
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Patent number 2,182,558
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Issue date Dec 5, 1939
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS