73821188
Aug 24, 1989
Feb 25, 1992
COMPUTER PROGRAMS, PRE-RECORDED VIDEOTAPES, PRE-RECORDED AUDIO TAPES, AUDIO DISCS, COMPACT DISCS, INTERACTIVE VIDEO DISCS, AND PHOTOGRAPHIC SLIDE TRANSPARENCIES, ALONE OR IN COMBINATION, FEATURING INSTRUCTIONAL SYSTEMS DEALING WITH A SINGLE CONCEPTUAL UNIT OF SUBJECT MATTER
Electrical and Scientific ApparatusCONSULTING AND DESIGN SERVICES IN THE FIELDS OF INTERACTIVE AND MULTI-MEDIA INSTRUCTIONAL SYSTEMS DEALING WITH A SINGLE CONCEPTUAL UNIT OF SUBJECT MATTER
Computer and Scientific