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Tile board
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Patent number 5,052,160
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Issue date Oct 1, 1991
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Trayco, Inc.
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Barton K. Gentsch
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B32 - LAYERED PRODUCTS
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Bathing enclosure
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Patent number 4,316,295
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Issue date Feb 23, 1982
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Trayco, Inc.
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Thomas M. Whitney
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Plastic toilet
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Patent number 4,145,772
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Issue date Mar 27, 1979
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Trayco, Inc.
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Thomas M. Whitney
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E03 - WATER SUPPLY SEWERAGE
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Toilet
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Patent number D247913
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Issue date May 16, 1978
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Trayco, Inc.
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Thomas Michael Whitney
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D23 - Environmental heating and cooling