U.S. federal trademark · Serial No. 72285121 · Reg. No. 471344
REFRACTORY AND/OR ACID RESISTANT MATERIALS-NAMELY, BRICKS; CHEMICALLY, CERAMICALLY OR HYDRAULICALLY BONDED MORTARS AND MIXES, ESPECIALLY THOSE USEFUL AS RAMMING, GUNNING, PATCHING, CASTING, AND/OR COATING MIXES
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