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Earplugs with surface ornamentation

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Reexamination Certificate

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Earwax trap for use with hearing-aid apparatus, and hearing-aid

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Elastomeric anti-microbial stethoscope diaphragm

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Reexamination Certificate

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Elastomeric stethoscope cover

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Electracoustic transducer

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Electret transducer

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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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

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

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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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 variable thickness foam surface

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Electro-acoustical structure

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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