U.S. federal trademark · Serial No. 74400950 · Reg. No. 1829279
audible signaling devices for emergency warning purposes comprising control box, horn, amplifier, and speaker; voice override system comprising control box, microphone, speakers, and amplifier; and accessories; namely, tone modules and relay modules
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.