FB FIREBREATHER

Fire vents of metal for use in buildings, and parts thereof; fire vents of metal containing expanding material for preventing the spread of fire, for use in buildings, and parts thereof

Fire vents, not of metal for use in buildings (not included in other classes); parts for fire vents not of metal for buildings (not included in other classes); building material, namely, coating for prevention of fire in buildings

Installation and repair of fire vents for use in buildings