U.S. federal trademark · Serial No. 79183803 · Reg. No. 5019944
Stones, in particular refractory and heat-resistant stones; refractory construction materials not of metal in the nature of refractory and heat-resistant compounds and refractory and heat-resistant spraying compounds made of raw materials and additives with high alumina clay content for the production of refractory linings for use in foundries
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