U.S. federal trademark · Serial No. 79332177 · Reg. No. 6998516
Refractory materials, namely, non-metallic building materials; Refractory construction materials, not of metal, namely, refractory bricks, plates and blocks; refractory shapes not of metal, namely, shaped parts made of refractory materials for use in oven and furnace construction
Technical ceramic compositions for the manufacture of refractory materials
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