4. Acoustics
  5. Diaphragm
  6. With resonant chamber
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Acoustic apparatus

Acoustics – Diaphragm – With resonant chamber
Patent

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Acoustic apparatus

Acoustics – Diaphragm – With resonant chamber
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Acoustic apparatus

Acoustics – Diaphragm – With resonant chamber
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Acoustic apparatus

Acoustics – Diaphragm – With resonant chamber
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Acoustic apparatus

Acoustics – Diaphragm – With resonant chamber
Patent

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Acoustic apparatus

Acoustics – Diaphragm – With resonant chamber
Patent

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Acoustic apparatus with plural resonators having different reson

Acoustics – Diaphragm – With resonant chamber
Patent

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Damping element

Acoustics – Diaphragm – With resonant chamber
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Electroacoustic transducer

Acoustics – Diaphragm – With resonant chamber
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Intake air sound generation device

Acoustics – Diaphragm – With resonant chamber
Reexamination Certificate

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Loudspeaker with acoustic band-pass filter

Acoustics – Diaphragm – With resonant chamber
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Mechanical acoustic filter by erosion etching

Acoustics – Diaphragm – With resonant chamber
Reexamination Certificate

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Method and apparatus for augmentation of sound by enhanced reson

Acoustics – Diaphragm – With resonant chamber
Patent

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Method and apparatus of expanding acoustic reproduction range

Acoustics – Diaphragm – With resonant chamber
Patent

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Microphone and acoustic equalizer therefor

Acoustics – Diaphragm – With resonant chamber
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Speaker system

Acoustics – Diaphragm – With resonant chamber
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Symmetric double phonic diaphragm volume-enhancing device

Acoustics – Diaphragm – With resonant chamber
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