Barrier operator system with enhanced transmitter storage...

Barrier operator with secure/unsecure transmitter and method...

Battery activation circuit

Battery control and alarm system for vehicles

Battery economizing in a communications system

Battery lock anti-theft system

Bearing determining apparatus including single channel multiplex

Bellows caging mechanism for airborne hydrophone

Below glide slope advisory warning system for aircraft

Belt drive connection malfunction sensor

Bicycle safety flasher with optional mounting means for other us

Bidirectional remote control system, bidirectional remote...

Bidirectional seismic array and method of seismic exploration

Bio-metric smart card, bio-metric smart card reader and...

Bio-metric smart card, bio-metric smart card reader, and...

Biometric authentication of hospitality-site customers

Biometric authentication of hospitality-site customers

Biometric information detecting apparatus

Biometric key

Biometric keyless entry system