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SASH GUIDE
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Publication number 20210381301
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Publication date Dec 9, 2021
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Amesbury Group, Inc.
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Wilbur J. Kellum
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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CORNER KEY FOR EXTRUDED WINDOWS AND DOORS
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Publication number 20200355022
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Publication date Nov 12, 2020
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Amesbury Group, Inc.
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Wilbur J. Kellum
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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INVERTED CONSTANT FORCE WINDOW BALANCE
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Publication number 20200157863
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Publication date May 21, 2020
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Amesbury Group, Inc.
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Wilbur J. Kellum
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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INVERTED CONSTANT FORCE WINDOW BALANCE
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Publication number 20180291660
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Publication date Oct 11, 2018
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Amesbury Group, Inc.
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Wilbur J. Kellum
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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