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Spatial arrangements of separate transducers responsive to two or more frequency ranges

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  • H04R1/26
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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

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H04R1/26Spatial arrangements of separate transducers responsive to two or more frequency ranges
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