Talk:Polygraph (duplicating device)

A fact from Polygraph (duplicating device) appeared on Wikipedia's Main Page in the Did you know column on 4 November 2009 (check views). The text of the entry was as follows:

Did you know... that the "polygraph" (pictured) was an early 19th century mechanism used to create a duplicate of a handwritten document as it was created, as used by U.S. President Thomas Jefferson?

A record of the entry may be seen at Wikipedia:Recent additions/2009/November.

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