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Stowable step assembly
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Patent number 12,078,014
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Issue date Sep 3, 2024
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Purdue Research Foundation
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Elvin Garayev
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Elevator pit ladder apparatus
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Patent number 11,440,772
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Issue date Sep 13, 2022
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Mitsubishi Electric Corporation
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Hironobu Kamada
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Roof rack side ladder
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Patent number 10,927,599
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Issue date Feb 23, 2021
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Timothy Nakari
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B60 - VEHICLES IN GENERAL
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Retractable step stool/access device
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Patent number 10,582,774
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Issue date Mar 10, 2020
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Ralph Layne White
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Attic insulation cover
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Patent number 9,695,630
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Issue date Jul 4, 2017
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SOUTHEAST ENERGY SOLUTIONS INC.
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Michael L. Arthur
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E04 - BUILDING
-
-
Tilt-down tower
-
Patent number 9,228,370
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Issue date Jan 5, 2016
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Anthony Peter Boniface
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E04 - BUILDING
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Lightweight wooden stairs
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Patent number 8,763,756
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Issue date Jul 1, 2014
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Fakro PP Sp. z o. o.
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Boguslaw KasiĆski
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E04 - BUILDING
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-
-
Access device
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Patent number 5,988,316
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Issue date Nov 23, 1999
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Justoy Pty Ltd
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Robert Ian Hedley
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B60 - VEHICLES IN GENERAL
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Dismountable ladder
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Patent number 5,143,174
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Issue date Sep 1, 1992
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William E. Davis
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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-
Retractable ladder apparatus
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Patent number 5,111,906
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Issue date May 12, 1992
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Auguste Abadia
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Portable fence stile
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Patent number 4,830,142
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Issue date May 16, 1989
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Bernard T. McManus
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Portable safety post
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Patent number 4,729,453
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Issue date Mar 8, 1988
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The Bilco Company
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Robert J. Lyons
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Vanity storing step
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Patent number 4,135,604
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Issue date Jan 23, 1979
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Francis Ryan
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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3713511
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Patent number 3,713,511
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Issue date Jan 30, 1973
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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3504764
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Patent number 3,504,764
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Issue date Apr 7, 1970
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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3139949
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Patent number 3,139,949
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Issue date Jul 7, 1964
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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1003105
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Patent number 1,003,105
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Issue date Sep 12, 1911
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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236044
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Patent number 236,044
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Issue date Dec 28, 1880
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS