Photocopiers

In 1937, the process called Xerography was invented by American law student … Xerography became commercially available in 1950 by the Xerox Corporation

Duration : 0:0:44

[youtube HFxo4j1EWsA]

One Response

1. linkcouo Says:
   October 27th, 2009 at 8:10 pm

   No se puede hablar …
   No se puede hablar tanto en tan poco tiempo.

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