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in which the windings of the moving coil lay in the same plane

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  • CPC
  • H04R9/047
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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 H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type

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H04R9/047in which the windings of the moving coil lay in the same plane
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