Venturi muffler
Venturi muffler having plural nozzles
Venturi muffler with variable throat area
Vertical mount catalytic converter muffler
Visible flame exhaust pipe
Vocal muffler
Vocal sound muffling device
Vortex generators for internal mixing in a turbofan engine
Vortex generators for internal mixing in a turbofan engine
Wall structure for sound attenuating apparatus
Water faucet silencer apparatus
Weatherproof sound attenuating device
Wet marine exhaust muffler
Wind and breath noise protector for microphones
Wind/breath screen for a microphone
Zeno duct sound attenuating means
Zeno duct sound attenuating means