H04R 21/026
In which the sound is perpendicular to the current crossing the transducer
Official title: {in which the sound is perpendicular to the current crossing the transducer material}
H04R21/026 (In which the sound is perpendicular to the current crossing the transducer) appears on 1 US grants and 1 published applications in this corpus.
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- 14 Jan 2025
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