88319835
Feb 28, 2019
Registers, grilles, diffusers, and louvres for air distribution systems; registers, grilles, and diffusers for heating, ventilating, and air conditioning systems, namely, registers and grilles, baseboard and floor registers and grilles, sidewall registers and grilles, ceiling registers and grilles, return air filter grilles, ceiling diffusers, spiral duct diffusers, bar diffusers, and linear diffusers; air handling and conditioning system louvres; air return vents; accessories for registers and grilles
Environmental Control Apparatus