Life safety device with automatic battery discharge at the...
Life safety system with energy saving visual alarm appliance...
Light control for a switch
Light curtain repeater system and method of operation
Light curtain system with individual beam indicators and...
Light emitters for optical traffic control systems
Light emitting diode retrofitting lamps for illuminated...
Light frame counter device
Light reflecting delineator
Light scattering smoke detector
Light scattering smoke detectors
Light scattering type smoke detector
Light sensing pull station
Light signaling device related to the operating state of a...
Light socket adapted smoke detector
Light-pipe based identification and location signaling light
Light-reflector type encoding method and the encoder
Light-responsive enclosure alarm
Lighting control system and method
Lighting fixture with box, bracket, extension cord, and...