Metal doors; Door extension panels of metal; Fire-rated access doors made of metal; Fire-triggered doors made of metal; Metal safety railings and doorway barriers; Metal safety posts and safety supports for use in connection with ladders, hatchways, hatchway doors, and accessways; Metal vent covers for ventilation ducts; Ventilating ducts of metal; Metal smoke vents for venting smoke from buildings; Metal fire vents for use in buildings; Metal explosion release vents for use in buildings; Automatically activated vents made of metal for removing smoke, heat and gasses, for use in buildings; Fire- and smoke-triggered vents made of metal for removing smoke, heat and gasses, for use in buildings; Building materials, namely, foundation plates of metal; Stair stringers of metal; Metal grating covers; Skylights of metal; Intruder barriers of metal; Building materials, namely, grilles of metal for ventilating installations; Metal vent cover for ventilation ducts; Hatches of metal in the nature of doors for roof access; Metal door frames; Metal handrails; Handrails made of metal for walkways; Metal fireproof panels for use in building construction; Metal frames for skylights; Metal roof scuttles, hatches, sidewalk doors, cellar doors, passageway doors, vault doors and access doors; Counterbalanced horizontal access doors made of metal for sidewalks, floors, pits, ceilings, and roofs; Counterbalanced metal basement doors; Metal locks and metal multi-point locking system for doors; Metal latches that are electrically operated and explosion release metal latches; Metal guard closeable barriers for preventing falls into hatch openings | Access security apparatus, namely, electronic access control systems for interlocking doors and hatch doors; Automatic electronic access control systems for interlocking doors and hatch doors; Electric access control and alarm monitoring systems for doors and covers; Electrical control panels; Electronic control circuits for door and hatch cover control instruments; Electrical push button switches; Power switches; Electric locks; Fire extinguishing apparatus in the form of automatic smoke, heat and gas venting apparatus; Sensors and detectors for smoke and fire | Insulation materials; Sealing and insulating materials; Polymeric and rubber gaskets for use in sealing and insulating buildings from drafts; Non-metallic weather seals, namely, polymeric and rubber gaskets for use in sealing and insulating buildings; Sealing gaskets made of rubber for metal access doors; Non-metal gaskets for restricting flow of air and gasses; Insulation in the form of non-metal weather strips for metal access doors | Nonmetal roof vents for ventilation in commercial buildings; Nonmetallic skylights; Nonmetal automatically activated vents for removing smoke, heat and gasses for use in buildings; Nonmetal smoke vents for venting smoke from buildings; Nonmetal fire vents for use in buildings; Nonmetal fire-triggered vents for removing smoke, heat and gasses, for use in buildings; Non- metal access covers, namely, access doors
