Electrical and electronic devices for identifying, locating and tracking lost articles [ and people ] using radio frequency, namely, [ bar code readers, bar code scanners, radio-frequency identification (RFID) readers and chip card readers for reading bar codes, matrix codes and radio-frequency identification (RFID) microchips; ] radio-frequency identification (RFID) tags [ ; bar code readers; radio-frequency identification (RFID) readers; radio-frequency identification (RFID) microchips; pri...