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Height-adjustable chair arm assembly
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Patent number 6,106,070
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Issue date Aug 22, 2000
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Haworth, Inc.
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Robert T. Ritt
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Height-adjustable chair arm assembly
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Patent number 5,853,223
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Issue date Dec 29, 1998
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Haworth, Inc.
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Robert T. Ritt
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Height-adjustable chair arm assembly
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Patent number 5,647,638
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Issue date Jul 15, 1997
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Haworth, Inc.
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Robert T. Ritt
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...