9 Currency authentication apparatus and equipment; detectors and sensing apparatus and equipment; security scanners and other apparatus and equipment for detecting security documents, security inks and security devices used in bank notes and other security documents; optical detection apparatus and equipment; diffraction gratings; optically variable devices; security devices in this class for bank notes, cheques, credit cards and other security documents; security products in this class incorporating optically variable devices, security inks or other security devices, namely, credit cards, cheques, bank notes and other security documents; computer hardware and software, namely, computer hardware and software for use in currency authentication equipment and apparatus; and computer hardware and software for producing optically variable devices and other security devices