Door openers, electric; Door openers, hydraulic; Door openers, pneumatic; Electric door openers; Electric door openers and closers; Electric door opening and closing system; Electric door opening system; Electric gate operators

Door bells of metal, non-electric; Door stops of metal; Door fittings of metal; Iron gates; Metal door hardware, namely, non-powered door actuators; Metal doors; Metal gate stops; Metal gates; Metal runners for sliding doors; Metallic doors, windows, shutters, slatted shutters

Webcams; Biometric fingerprint door locks; Biometric scanners; Digital door locks; Electronic locks; Infrared detectors; Infrared sensors; Passive infrared detectors; Programmable locking systems, consisting of electronic cylindrical locksets and keypads; Radio-frequency controlled locks

Gates, not of metal; Non-automatic nonmetal turnstiles; Non-metal doors; Non-metal gates; Non-metal sliding doors; Swing doors, not of metal; Wooden doors