73385948
Sep 16, 1982
May 1, 1984
Pre-Recorded Computer Programs on Magnetic Medium for Use in Interactive Graphic System; and Interactive Computer Graphics Systems Hardware-Namely, Data Processing Computers, Graphics Processors, Numeric Controllers, Disk Drives, Tape Drives, Copiers, Printers, Pen Plotters, and Electrostatic Plotters
Electrical and Scientific Apparatus