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A. P. deSanno Abrasive Company Abrasive Grain Association abrasive industry Abrasive Materials Company abrasive products Abrasive Wheel active Adamite aluminum oxide American Abrasive American Emery Wheel appointed Ashland Emery Bakelite bauxite became Board of Directors bonded abrasive bonded wheels Boron Carbide Byers Carborundum Company Ceramic Chairman Chester committee Corporation Cortland Corundum Company Corundum Wheel Company death Department Detroit diamond disc electric furnace Emery & Corundum Emery Company Emery Mills Emery Wheel Company Engineer Exolon Company facture Frank George graduate grinders grinding machines Grinding Wheel Company Grinding Wheel Manufacturers interest January joined kiln later Machine Company Macklin manu Manufacturing Company Mass Matthew Mann meeting Niagara Falls Norton Company officers operations organization pany patents Pike polishing purchased resinoid Safety Sales Manager Secretary served shellac silicate silicon carbide Simonds sold standard started steel Sterling stones Superintendent tion Treasurer vitrified wheels Wheel Manufacturers Association William Worcester Worcester Polytechnic Institute