U.S. federal trademark · Serial No. 77766698 · Reg. No. 3798596
Development and dissemination of educational materials of others in the field of science and history; Educational services, namely, a continuing program about science and history accessible by television, satellite, audio, video and computer networks; Educational services, namely, conducting informal programs in the fields of science and history, using on-line activities and interactive exhibits, and printable materials distributed therewith; Educational services, namely, conducting course presentations in the field of science and history and distribution of course material in connection therewith
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