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Flexcompressional acoustic transducer

Acoustics – Geophysical or subsurface exploration – Well logging
Patent

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Flexible aerodam to reduce the sound of turbulence

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

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Flexible earphone assembly for use during hearing screening

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

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Flexible hearing aid

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Flexible marine seismic source

Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent

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Flexible multiple speaker support apparatus

Acoustics – Diaphragm and enclosure
Reexamination Certificate

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Flexible noise barrier material

Acoustics – Auditorium
Patent

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Flexible plate and a flywheel assembly employing the flexible pl

Acoustics – Sound-modifying means – Mechanical vibration attenuator
Patent

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Floor mats having peripheral apertures with acoustic...

Acoustics – Sound-modifying means – Sound absorbing panels
Reexamination Certificate

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Floor speaker

Acoustics – Diaphragm and enclosure – Recessed
Patent

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Flow distributor for gas turbine silencers

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent

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Flow duct sound attenuator

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent

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Flow-through mufflers with optional thermo-electric, sound...

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

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Flow-through sound-cancelling mufflers

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

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Fluid acoustic silencer

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent

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Fluid actuated acoustic pulse generator

Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent

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Fluid blow-off muffler

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent

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Fluid blow-off muffler

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent

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Fluid coupled subwoofer acoustic enclosure system with port cham

Acoustics – Plural diaphragm sound sources – Plural chambers
Patent

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Fluid coupled subwoofer acoustic enclosure system with vent cham

Acoustics – Diaphragm and enclosure – With sound-absorbing means
Patent

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