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Composite hutch door
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Patent number 8,528,280
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Issue date Sep 10, 2013
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HNI Technologies Inc.
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Robert Coil
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Wall panel system
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Patent number 7,958,683
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Issue date Jun 14, 2011
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HNI Corporation
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Sam E. Abusada
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E04 - BUILDING
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Wall panel system
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Patent number 6,964,138
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Issue date Nov 15, 2005
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HNI Technologies Inc.
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Mark Carroll
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E04 - BUILDING