The Invention of the Telephone by A.G. Bell.
The number is 3359678
Here is the link to a picture of the first patent granted in 1790. http://inventors.about.com/od/weirdmuseums/ig/Inventive-Thinking/First-Patent-Grante.htm Below is a description of the...
US Patent No. 1582
Use this link to research US Patent Numbers: http://patft.uspto.gov/netahtml/PTO/srchnum.htm