Coloring Book of Patents - from National Archives of the United States / by FPM Team

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The National Archives of the United States recently released a 17 page Coloring Book of Patents which includes a baseball catcher (1901),  space capsule (1963),  mechanical toy (1910),  submarine vessel (1884) and a robot amusement ride (1958).

Pull out the crayons and have some fun!  Download here