Method and apparatus for retrofitting a backlit sign with light emitting diode modules
A Standard patent application filed on 07 October 2003 credited to Wu, Chen H.
Details
Application number :
2003282762
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
Method and apparatus for retrofitting a backlit sign with light emitting diode modules