Labels with integrated rfid chips; radio frequency identification tags (rfid) tags; radio frequency identification (rfid) readers; rfid system, namely, RFID system comprised of antennas for low frequency (rf) rfid, high-frequency (rf) rfid and ultra- high frequency (uhf) rfid; apparatus for rfid-technique for manufacturing rfid tags, namely electronic chips for the manufacture of rfid tags; downloadable computer software for scanning or reading a code, namely a uhf (ultra-high frequency) rfid code and other rfid codes via computer or mobile device or any combination of these