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From about.com
What is bar code? It is method of automatic identification and data collection. The first patent for a bar code type product (US Patent #2,612,994) was issued to inventors Joseph Woodland and Bernard Silver on October 7, 1952. The Woodland and Silver bar code can be described as a "bull's eye" symbol, made up of a series of concentric circles.
Examine the 1958 patent drawing to the left that depicts the Woodland's and Silver's bar code label and the 1958 patent drawing below right of the inventors' bar code scanner technology. The photo below left is an example of today's U.P.C. bar code on a product package.
In 1948, Bernard Silver was a graduate student at Drexel Institute of Technology in Philadelphia. A local food chain store owner had made an inquiry to the Drexel Institute asking about research into a method of automatically reading product information during checkout. Bernard Silver joined together with fellow graduate student Norman Joseph Woodland to work on a solution.
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