UPC code (Universal Product Code)
is the first large-scale application of the bar code, the United
States unified code committee to develop a bar code for goods,
mainly for the United States and Canada, after the passage of
In principle, UPC code is
produced by the manufacturer in the catalog after the production of
goods to the local code committee to apply for approval after the
trademark in the UPC system only identification code.
A commodity corresponds to only a
UPC, after the application of the manufacturer, the manufacturer has
the right to change the use of UPC.