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January 1940 Number
17 other sections not shown
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American Ceramic Society ball clays body brick Carbonate Carborundum Ceramic Arts Ceramic Engineering ceramic industry Chairman Chemical Mfg Chemicals Dept Chicago Vitreous Enamel clay deflocculant Clay Mines Corp Clay Products Color & Chemical Columbus Committee Company cone Corhart Refractories deflocculant Denver Fire Clay Division Drakenfeld Edgar Plastic Kaolin Edward Orton Electric Elwyn Enamel and Mfg Equipment feldspar firebrick Flint Foote Mineral Frazier-Simplex furnace glass glaze Hammill & Gillespie Harshaw Chemical heat Hommel Indiana Ingram-Richardson Mfg insulating kiln laboratory Lakes Foundry Sand Lancaster Iron Louthan Mfg Magnesite manufacture materials Maxson Metal & Thermit method mill Mixers mold National Engineering Norton Ohio State University operation Paper Makers Importing Pennsylvania Salt Mfg Pittsburgh plant Pont de Nemours Porcelain Enamel Potters Supply pottery Pyrometer Refractories sagger silica Sodium sodium silicate temperature thermal Thermit Thermit Corp Tile tion United Clay Mines Vitreous Enamel vitrification Vitro Mfg ware whiteware York