73571480
Dec 3, 1985
Feb 17, 1987
PRERECORDED DATA AND PROGRAM CARRIERS - NAMELY, FLOPPY DISKS, MAGNETIC TAPES, CHIP CARDS AND CARD READERS; INTEGRATED CIRCUIT COMPUTER PROGRAMS TO PREVENT UNLAWFUL COPYING AND/OR EXECUTING OF PROGRAMS AND PACKAGES; SECURITY UNIT TO PROTECT PROGRAMS AND DATA BASED ON THE USE OF INTEGRATED CIRCUIT CARDS AND CRYPTOGRAPHIC TECHNIQUES; COMPUTER PROGRAMS AND FIRMWARE TO SUPPORT THE SECURITY UNIT; FLOPPY DISCS, INTEGRATED CIRCUIT CARDS AND CARD READERS TO STORE COMPUTER PROGRAMS AND FIRMWARE
Electrical and Scientific Apparatus