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Work space management system
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Patent number 7,913,459
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Issue date Mar 29, 2011
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Herman Miller, Inc.
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Douglas Ball
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Back construction for seating unit
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Patent number 7,740,315
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Issue date Jun 22, 2010
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Steelcase Inc.
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Douglas C. Ball
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Chair construction
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Patent number 6,913,315
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Issue date Jul 5, 2005
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Steelcase Development Corporation
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Douglas C. Ball
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Chair construction
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Patent number 6,698,833
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Issue date Mar 2, 2004
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Steelcase Development Corporation
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Douglas C. Ball
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Chair construction
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Patent number 6,523,898
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Issue date Feb 25, 2003
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Steelcase Development Corporation
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Douglas C. Ball
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Chair component
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Patent number D457023
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Issue date May 14, 2002
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Steelcase Development Corporation
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Douglas C. Ball
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D06 - Furnishings
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Chair component
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Patent number D456650
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Issue date May 7, 2002
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Steelcase Development Corporation
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Douglas C. Ball
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D06 - Furnishings
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Chair
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Patent number D456159
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Issue date Apr 30, 2002
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Steelcase Development Corporation
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Douglas C. Ball
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D06 - Furnishings