U.S. federal trademark · Serial No. 71554876 · Reg. No. 0511946
BOOKS, BOOK SERIES, MAPS AND MAP SERIES, PUBLISHED FROM TIME TO TIME, OF AN EDUCATIONAL OR INSTRUCTIONAL NATURE, CERTAIN PAGES OF SAID BOOKS AND BOOK SERIES BEING PRINTED IN HECTOGRAPH INK, AND CERTAIN OF SAID MAPS AND MAP SERIES BEING PRINTED IN HECTOGRAPH INK
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