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Clamping rim of diaphragm or cone against seating

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  • H04R7/22
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HELECTRICITY H04Electric communication H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS DEAF-AID SETS PUBLIC ADDRESS SYSTEMS H04R7/00Diaphragms for electromechanical transducers Cones

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H04R7/22Clamping rim of diaphragm or cone against seating
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