Vacuum cleaner equipped with sound cancellation generator
Variable intensity whistle
Vehicle horn with electronic solid state energizing circuit
Vehicle-state based parameter adjustment system
Velocity measuring system
Vertical marine flute
Vibrating membrane horns
Vibration and noise filtering device
Vibration damping
Vibration damping composite laminate
Vibration-damping material with excellent workability
Vlacic's on/off and adjustable sound valve
Vocal muffler
Voice transmitter
Voice-scrambling-signal creation method and apparatus, and...