TREA

for obtaining a phase-shift between the front and back acoustic wave

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Industry

  • CPC
  • H04R1/347
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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 H04R1/00Details of transducers, loudspeakers or microphones

Current Industry

H04R1/347for obtaining a phase-shift between the front and back acoustic wave
Industries