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Seat cushion
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Patent number 5,033,133
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Issue date Jul 23, 1991
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Nissen Sports Academy, Inc.
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George P. Nissen
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Bleacher cushions
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Patent number 4,729,599
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Issue date Mar 8, 1988
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Gymnasium Protection Systems, Inc.
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George P. Nissen
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Weight lifting machine
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Patent number 4,358,107
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Issue date Nov 9, 1982
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George P. Nissen
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A63 - SPORTS GAMES AMUSEMENTS
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