U.S. federal trademark · Serial No. 71231366 · Reg. No. 0231293
CRUSHED OR GROUND DIATOMACEOUS EARTH IN NATURAL, DRIED, OR CALCINED CONDITION, PULVERULENT COMPOSITIONS CONTAINING DIATOMACEOUS EARTH AND AGGREGATES COMPRISING AND CONTAINING NATURAL, DRIED, OR CALCINED DIATOMACEOUS EARTH FOR USE WITH HYDRAULIC CEMENT, GYPSUM, BITUMEN, AND OTHER BINDERS OR COMBINED THEREWITH TO FORM WALL BOARD, WALLS, PAVING, AND OTHER STRUCTURES
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