4. Acoustics
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Vibratory seismic source for generating combined compressional a

Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent

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Video equipment speaker device with acoustic lens

Acoustics – Sound-modifying means – Lens
Reexamination Certificate

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Virtual imaging multiple transducer system

Acoustics – Diaphragm and enclosure – Reflector baffle
Patent

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Virtual sound source system

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Viscoelastically damped reinforced skin structures

Acoustics – Sound-modifying means – Mechanical vibration attenuator
Patent

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Visible flame exhaust pipe

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

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Vocal communication snorkel

Acoustics – Anatomic or prosthetic relation – Dentiphone
Patent

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Vocal muffler

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

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Vocal sound muffling device

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

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Voice communicator

Acoustics – Speaking tubes
Patent

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Voice responsive toy

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Vortex generators for internal mixing in a turbofan engine

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

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Vortex generators for internal mixing in a turbofan engine

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

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VSP-based method and apparatus for tieing seismic data shot usin

Acoustics – Geophysical or subsurface exploration – Seismic source and detector
Patent

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Wall attached sound absorptive structure

Acoustics – Sound-modifying means – Space absorbers
Patent

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Wall covering for absorbing sound waves in a liquid medium

Acoustics – Sound-modifying means – Sound absorbing panels
Patent

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Wall mounted speaker system

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Wall structure for sound attenuating apparatus

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

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Wall-mounted resin speaker cabinet

Acoustics – Plural diaphragm sound sources
Patent

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Water faucet silencer apparatus

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

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