U.S. federal trademark · Serial No. 71568599 · Reg. No. 0528327
SILICON CARBIDE AND MIXTURES COMPOSED PRINCIPALLY OF SILICON CARBIDE, SAID MATERIALS BEING IN CRUDE OR PARTLY FINISHED FORM FOR USE AS FOUNDRY ADDITION AGENTS, CHEMICAL REDUCING AGENTS OR FOR USE IN THE MANUFACTURE OF ABRASIVES AND REFRACTORIES
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