TREA

Electric megaphones

Follow

Industry

  • CPC
  • H04R27/04
This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

HELECTRICITY H04Electric communication H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS DEAF-AID SETS PUBLIC ADDRESS SYSTEMS H04R27/00Public address systems

Current Industry

H04R27/04Electric megaphones
Industries