73489560
Jul 12, 1984
Sep 23, 1986
COMPUTER PROGRAMS RECORDED ON MAGNETIC DISKETTES ALLOWING MASS DUPLICATION OF THE DISKETTES
Electrical and Scientific ApparatusCOMPUTER PROGRAM PUBLICATIONS, NAMELY, INSTRUCTION AND REFERENCE MANUALS
Paper Goods and Printed MatterSERVICES OF DUPLICATING COMPUTER PROGRAMS AND PLACING A SECURITY CODE ON THE COPY
Treatment of Materials