Document babDzkpre3rwdEnnnYVOk0GRg

members of industrial hygiene foundation -- F -- Peninsular Grinding Wheel Company Penn-Rillion Compary Pennsylvania Glass Sand Corporation Phelps Dodge Corporation Pittsburgh Coal Company Pittsburgh Plate Glass Company Polaroid Corporation Portland Content Association Posture Research Corporation Powers X-Ray Products, Inc. Precision Grinding Wheel Company, Inc. The Pullman Company Pyrene Manufacturing Company --B-- Ra'yBestos-Manhattar., Inc. Republic Steel Corporation Ria'.to Mining Corporal.on K. H. Robertson Company Robertson Manufacturing Company Safety First Supply Company Safety Grinding Wheel i. Machine Co. Sand Products Corporat.nn Claude B. Schneible Company Shenango Furnace Company Simonds Abrasive Corr.psny Simonds Worden White Company . South West Box Company . St. Joseph Lead Company Standard Lime ft Stone Company ' The Standard Ultramarine Company Sterling China Company . ' Sterling Grinding Wheel Company ' Sun Sand Company Tata Sons. Ltd. Taylor. Smith ft Tavic,r rnmpuny Tennessee Copper Company 1 Texas Gulf Sulphur Company --T-- Titan Abrasives Company Toledo Edison Company Trenton Potteries Company Tri-State Zine ft Lead Ore Producer* Association -U-- Union Asbestos ft Rubber Company Union Carbide A Carbon CorporationUnited States Potters Association United States Smelting Refining ft Mining Company United States Steel Corporation of Del.. Universal Sanitary Manufacturing Co. Utilities Research Commission* -- V- .' Valley Mould ft Iron Corporation Van Cleef Bros. Vanadium Corporation of America Vesuvius Crucible Company Vitreous China Plumbing Fixtures Association Vitrified Wheel Company --W -- Waltham Grinding Wheel Company Washington Mills Abrasive Company Wedron Silica Company : West Virginia Manufacturers''' Association' Western Precipitation Corporation : Westfield Grinding Wheel Company Weatinghouae Air Brahe Company Westinghouse Electrie Corporation..^. Whitehead Brothers Company Willson Products, Inc. Winthrop Chemical Company, Inc..-. ^ ' Wisconsin Abrasive Company ' ' Wolfs New Process Abrasive Wheel. Inc. Youngstown Sheet ft T ube Company . 114