73312996
Jun 2, 1981
Sep 7, 1982
Videodiscs, Magnetic Medium Discs, and Magnetic Tapes and Combinations Thereof Containing Computer- and Videodisc Player-Controlling Software and Video Program Material; Computer Programs Supplied in the Form of Magnetic Medium Discs and Magnetic Tapes; Computer Systems Consisting of Computer with Digital Memory Apparatus, Mass Data Storage Apparatus, Videodisc Apparatus, Data Entry Apparatus, Video Display Apparatus, Data Output Apparatus, Computer Programs for Controlling Computer Operation; Computer-Based Instructional Apparatus for Use in Designing Computer-Based Instructional Materials in the Form of Computer Programs on Magnetic Disks and Tapes and Audio-Visual Presentations on Videodiscs Consisting of Computer with Digital Memory Apparatus, Mass Data Storage Apparatus, Videodisc Apparatus, Data Entry Apparatus, Video Display Apparatus, Data Output Apparatus, Computer Programs Operable on Said Apparatus for Controlling Computer Operation, and Computer Programs with Related Audio and Visual Program Material on Magnetic Tape, Magnetic Disk and Videodisc
Electrical and Scientific ApparatusEducational Testing and Teaching Services, Educational Course Design Services and Consultation Services in the Field of Education
Education and Entertainment