UHF tuner channel indicating device

Ultrasonic and/or infrasonic animal repellent horn powered...

Ultrasonic device for scaring animals from a moving vehicle

Ultrasonic pest control device and method for constructing the s

Ultrasonic signal generating device

Ultrasonic sound source and method for manufacturing rectangular

Ultrasonic wave transmitter mechanism

Umbrella top timer

Umpire's counter

Underground marking systems and methods for identifying a...

Underground utility location marker

Underground warning system for underground conduits or pipes

Underwater communication device and methods

Underwater pneumatic horn

Underwater signaling device

Underwater signalling devices

Unforgettable umbrella method

Unit conversion label

Universal T.V. channel knob

Utility location indicator apparatus