External chutes made of metal with Radio Frequency Identification (RFID) readers for moving books, magazines, and library materials; external chutes made of metal with electronic devices that issue receipts for moving books, magazines, and library materials; chutes made of metal for sorting of library items; chutes made of metal for sorting of library items with Radio Frequency Identification (RFID) readers; metal chutes for sorting of library items with Radio Frequency Identification (RFID) ...