Barcode scanners; Car aerials; Circuit boards provided with integrated circuits; Cleaning cartridges for photocopy machines and computer printers; Computer cameras; Document printers; Document printers for computers; Drum units for printers, facsimile machines, scanners, copying machines and multifunction electronic devices for use in copying, printing, scanning, video capture and/or transmitting documents and images; Ink jet document printers; Input devices for computer hardware and electronic instruments, namely, jog wheels; Laboratory equipment and supplies, namely, test tubes; Laboratory glassware; Maintenance kits for scanners comprised primarily of sets of replacement parts for scanners, namely, pick rollers, separation rollers, brake rollers and pad assemblies and also including cleaning kits for scanners comprised of liquid cleaners, cleaning sheets, cleaning papers, cleaning wipes, cleaning cloths and cleaning swabs; Petri dishes used in laboratory research; Unfilled ink cartridges for photocopy machines or computer printers