4. Acoustics
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Electric horn structure with the trumpet body and the resonator

Acoustics – Diaphragm and enclosure – With horn
Patent

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Electrically conductive damper device for speaker

Acoustics – Diaphragm – With damping means
Reexamination Certificate

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Electrically controlled in-muffler exhaust valve for use...

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Reexamination Certificate

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Electrically inclination compensated device for picking up...

Acoustics – Geophysical or subsurface exploration – Seismic wave detection
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Electro acoustic transducer with improved diaphragm

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Electro-acoustic planar transducer

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Electro-acoustic transducer

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Electro-acoustic transducer

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Electro-acoustic transducer

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Electro-acoustic transducer

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Electro-acoustic transducer

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Electro-acoustic transducer and method of manufacturing...

Acoustics – Diaphragm – Mounting or suspension means
Reexamination Certificate

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Electro-acoustic transducer and method of manufacturing...

Acoustics – Diaphragm – Mounting or suspension means
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Electro-acoustic transducer causing sound waves to be in phase a

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Electro-acoustic transducer diaphragms

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Electro-acoustic transducer having a diaphragm comprising a laye

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Electro-acoustic transducer means

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Electro-acoustic transducer with active dome

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Electro-acoustic transducer with high air permeable diaphragm

Acoustics – Diaphragm – Critically defined material or coating
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Electro-acoustic transducer with variable thickness foam surface

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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