Architectural acoustic products, namely, sound absorbers and diffusers; Architectural acoustic products, namely, sound absorbers and diffusers in the form of acoustic foam panels; Architectural acoustic products, namely, sound absorbers and diffusers in the form of decorative display panels composed primarily of non-metal materials which function to control sound; Acoustical tiles; Acoustical tiles in the form of acoustical foam tiles; Acoustical panels for buildings; Acoustical insulation ba...