TREA

Gramophone pick-ups using a stylus Recorders using a stylus

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Industry

  • CPC
  • H04R17/04
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Parent Industries

HELECTRICITY H04Electric communication H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS DEAF-AID SETS PUBLIC ADDRESS SYSTEMS H04R17/00Piezo-electric transducers Electrostrictive transducers

Current Industry

H04R17/04Gramophone pick-ups using a stylus Recorders using a stylus
Industries