Blueprint apparatus; cash registers; coin counting or sorting machines; photo-copying machines; mathematical instruments; time and date stamping machines; time clocks (time recording devices); punched card office machines; voting machines; apparatus to check stamping mail; photographic machines and apparatus; cinematographic machines and apparatus; optical machines and apparatus; telecommunication machines and apparatus; personal digital assistants; electronic machines, apparatus and their parts; electronic machines (not including geiger counters, high frequency apparatus for welding, cyclotrons (not for medical purposes), industrial X-ray machines and apparatus (not for medical use),industrial betatrons (not for medical use),magnetic prospecting machines, magnetic object detectors, seismic exploration machines and apparatus, hydrophone machines and apparatus, echo sounders, ultrasonic flaw detectors, ultrasonic sensors, electronic door closing control systems and electron microscopes); electron tubes; semi-conductor elements; electronic circuits, not including those recorded with computer programs; computer programs; geiger counters; high frequency apparatus for welding; cyclotrons, not for medical purposes; industrial X-ray machines and apparatus, not for medical use; industrial betatrons, not for medical use; magnetic prospecting machines; magnetic object detectors; seismic exploration machines and apparatus; hydrophone machines and apparatus; echo sounders; ultrasonic flaw detectors; ultrasonic sensors; electronic door closing control systems; electron microscopes; game programs for home video game machines; electronic circuits and CD-ROMs recorded with programs for hand-held games with liquid crystal displays; metronomes; electronic circuits and CD-ROMs recorded with automatic performance programs for electronic musical instruments; electric and electronic effects units for musical instruments; phonograph records; downloadable music files; downloadable image files; recorded video discs and video tapes; electronic publications; exposed cinematographic films; exposed slide films; slide film mounts