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Grinding wheel
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Patent number 6,358,133
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Issue date Mar 19, 2002
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3M Innovative Properties Company
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Robert T. Cesena
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B24 - GRINDING POLISHING
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Abrasive cutting tool
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Patent number 6,273,082
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Issue date Aug 14, 2001
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Ultimate Abrasive Systems, L.L.C.
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Naum T. Tselesin
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B28 - WORKING CEMENT, CLAY, OR STONE
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Tools with abrasive segments
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Patent number 6,196,911
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Issue date Mar 6, 2001
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3M Innovative Properties Company
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Jay B. Preston
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B24 - GRINDING POLISHING
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Superabrasive cutting surface
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Patent number 6,110,031
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Issue date Aug 29, 2000
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3M Innovative Properties Company
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Jay B. Preston
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B24 - GRINDING POLISHING
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Patterned abrasive material and method
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Patent number 5,980,678
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Issue date Nov 9, 1999
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Ultimate Abrasive Systems, L.L.C.
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Naum N. Tselesin
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Abrasive cutting tool
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Patent number 5,791,330
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Issue date Aug 11, 1998
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Ultimate Abrasive Systems, L.L.C.
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Naum N. Tselesin
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B28 - WORKING CEMENT, CLAY, OR STONE
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Composite material
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Patent number 5,049,165
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Issue date Sep 17, 1991
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Naum N. Tselesin
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B24 - GRINDING POLISHING
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