75072158
Mar 13, 1996
Apr 14, 1998
electronic light emitting diode display board systems, namely, light emitting diode displays, electric luminescent display panels, electrical picking tag displays for indicating data associated with control and amount of a product being displayed, computer software for monitoring and adjusting the electrical output of light emitting diode displays and electric luminescent display panels, and wireless communication systems, namely, RF receivers and transmitters
Electrical and Scientific Apparatus