U.S. federal trademark · Serial No. 86634006 · Reg. No. 4888763
Downloadable educational course materials in the field of mathematics, language, history, social science, and science; Downloadable electronic publications in the nature of instructional, educational, and teaching materials in the nature of books, [ manuals, ] notebooks, [ brochures, pamphlets, newsletters ] and worksheets in the fields of mathematics, language, history, social science and science
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