73749688
Aug 31, 1988
May 12, 1992
COMPUTER PROGRAMS IN THE NATURE OF OPERATING SYSTEMS TO PROVIDE OPERATING ENVIRONMENTS WHICH FACILITATE CREATION OR MODIFICATION UTILITY COMPUTER PROGRAMS, OPTICAL DISCS, MAGNETIC DISCS, MAGNETIC TAPES, AND MAGNETIC OR OPTICAL DATA CARRYING MEDIA DEALING WITH COMPUTER PROGRAMS, FACILITATING PROGRAMMER PRODUCTIVITY
Electrical and Scientific Apparatus