COORDINATE INPUT DEVICES FOR COMPUTERS; [ COMPUTER CURSOR CONTROL DEVICES, NAMELY, DIGITIZER TABLETS; ] INPUT DEVICES, NAMELY, INPUT TABLETS FOR COMPUTERS; ELECTRONIC PEN VISUAL DISPLAY UNITS, NAMELY, TABLETS; ELECTRONIC PENS IN THE NATURE OF VISUAL DISPLAY UNITS; [ COMPUTER KEYBOARDS; TOUCH PANELS FOR COMPUTERS; ] ELECTRONIC COMPUTER WHITEBOARDS; INPUT DEVICES FOR COMPUTERS; [ DATA PROCESSING APPARATUS; ] SOFTWARE FOR COMPUTER INPUT, NAMELY, COMPUTER SOFTWARE FOR OPERATING A COORDINATE INPUT...