Central processing units; Electronic card readers; Cards with integrated circuits; Cash registers, calculating machines, data processing equipment and computers; Punched card office machines; Sonar equipment and parts thereof; Teaching apparatus, namely, microscopes; Electrical inductors; Optical fibers; Electronic locks; Portable video cameras with built-in videocassette recorders; Time recording apparatus; cameras; Electronic recorders for storing and archiving information related to power system faults; Voltmeters; Lenses for microscopes; Electronic chips for the manufacturer of integrated circuits; Electric control panels; Control system for the remote observation, management and operation of cranes, comprising computers, software, electromechanical controls, and video display screens; Biometric fingerprint door lock; Home and office automation systems comprising wireless and wired controllers, controlled devices, and software for lighting, HVAC, security, safety and other home and office monitoring and control applications