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Multidisc floor grinder
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Patent number 6,238,277
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Issue date May 29, 2001
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C. Warren Duncan
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Grinding vacuum shroud
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Patent number 5,791,979
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Issue date Aug 11, 1998
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C. Warren Duncan
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B24 - GRINDING POLISHING
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Bed rail apparatus
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Patent number 5,481,772
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Issue date Jan 9, 1996
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William D. Glynn
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Containment system
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Patent number 5,197,239
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Issue date Mar 30, 1993
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SINCO Incorporated
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William T. Glynn
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E04 - BUILDING
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Pile cutter support
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Patent number 5,090,397
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Issue date Feb 25, 1992
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Sinco, Inc.
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Robert H. Larsen
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B28 - WORKING CEMENT, CLAY, OR STONE
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Debris barrier
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Patent number 4,875,549
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Issue date Oct 24, 1989
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Sinco, Inc.
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David S. Denny
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E04 - BUILDING
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Debris barrier
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Patent number 4,815,562
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Issue date Mar 28, 1989
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Sinco, Inc.
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E04 - BUILDING