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A New Optical Thickness Gauge for Flat Glass 37779
History of AC Spark Plug Division General Motors Corp 44555
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Alumina American Ceramic Society April April 26 B. F. Du Pont Board of Trustees brick Bulletin Calif Carbonate Carborundum Ceramic Color Ceramic Engineers ceramic industry Chairman Chicago Cincinnati Clay Products College Columbus Committee cone Corhart Refractories Corp cost Division E. I. Harshaw Chemical Edward Orton elected Electro Refractories Elwyn Enamel Harshaw Chemical equipment Feldspar Ferro Enamel Harshaw firing Frazier-Simplex fuel furnace glass glaze Hammill & Gillespie Harshaw Chemical Hommel heat Institute Kaolin kiln KYANITE Laboratory Lithium mastic materials Maxson membership Metal & Thermit method mold mullite officers Ohio Ohio State University operation Oxide Pemco Pennsylvania State College Pittsburgh plant Pont de Nemours Porcelain Porcelain Enamel Posey Iron Pottery President Refractories & Alloys Secretary Section Silicate Speiden Steel Student Branch Super Refractories temperature thermal Thermit tile tion Titanium Alloy United Clay Mines University vice-president Vitro Manufacturing ware