Computer cameras; Audiovisual receivers; Lifesaving vests for use by dogs; Electronic animal identification apparatus; Transmitter and receiver used to locate lost pets; Radio frequency identification (RFID) tags; Radio frequency identification tag readers; Biometric fingerprint door locks; Traffic-light apparatus; Air analysis apparatus; Signal whistles; Time recording apparatus; Computers and computer hardware; Computers and computer peripherals; Calculating machines and data-processing equ...