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Chair seat tilt control
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Patent number 5,018,787
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Issue date May 28, 1991
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Shepherd Products U.S. Inc.
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Michael H. Estkowski
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Chair seat tilt control
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Patent number 4,892,354
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Issue date Jan 9, 1990
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Shepherd Products U.S., Inc.
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Michael H. Estkowski
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Chair seat tilt control
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Patent number 4,718,726
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Issue date Jan 12, 1988
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Michael H. Estkowski
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...