Document q3d7L5omLa3gxgmKdEOVoEkLx

members of industrial hygiene foundation --C-- Garco Products, Inc. Gardner Machine Company Gcnerai Abrasive Company, Inc. General Ar.iiine 4: Film Corporation General Grinding Wheels Corporation General Motors Corporation General Refractories Company Glenshaw Glass Company, Inc. A. P. Green Fire Brick Company Grinding Wheel Manufacturers Assoc. --H-- The Hall China Company Hamilton Emery Corundum Company Hampden Grinding Wheel Company Hawley Products Company Hazel-Atlas Glass Company Hercules Powder Company John W. Higman Company Mauricio Hochschild S. A. II. I. 0. Hommel Company Imperial Chemical Industries, Ltd. Industrial Silica Corporation Inland Steel Company Interchemical Corporation International Business Machines Corp. International Nickel Company, Inc. --J-- Jackson Mills Emery Company Jamison Coal Coke Company Johns-Manville Corporation Jones & Laughlin Steel Corporation --K-- Keasbey and Mattison Company Kenneeott Copper Corporotion Keystone Emery Mills Kimble Glass Company The Kirk Blum Manufacturing Company "jj The Edwin M. Knowles Chtr.a Company Hoppers Company --L-- Homer Laughlin China Company Lava Crucible Company of Pittsburgh E. J. Lavino Company Lead Industries Association --M-- Mackintosh-Hemphill Company Macklin Company Magma Copper Company Maryland Seif-Insurers' Association Mayer China Company J. S. McCormick Company Metropolitan Life Insurance Company Mexico Refractories Company Mid-West Abrasive Company Mine Safety Appliances Company Monsanto Chemical Company Mutual Chemical Company of America --N-- National Association Fan Manufacturers National Association of Mutual Casualty Companies* National Crushed Stone Association, Inc. National Grinding Wheel Company National Industrial Sand Association National Lead Company National Sand Gravel Association National Slag Association National Steel Company National Supply Company The Neville Company New Jersey Zinc Company North American Refractories Company Norton Company Norton Pike Company --0-- Ontario Mining Association Orientat Abrasive Company Ottawa Silica Company Owcns-Caming Fiberglas Corporation Owens-Illinois Glass Company