Patent database, U.S. Patent and Trademark Office. (The US patents referenced on this site can be looked up using the Patent Number Search. A TIFF image viewer plugin is required to view pre-1976 patents.)

United States Patent Office, Subject-matter index of patents for inventions issued by the United States Patent Office from 1790 to 1873, inclusive (North Stratford, NH : Ayer Co. Publishers, 2000).

Kevin Desmond, A timetable of inventions and discoveries from pre-history to the present day (New York : M. Evans, c1986.)

Roger Bridgman, 1,000 inventions & discoveries (New York : DK Pub., c2002, 1st American ed.)

James Dyson, A history of great inventions (New York : Carroll & Graf Publishers, 2001, 1st Carroll & Graf ed.)

Edward De Bono (ed.), Eureka! An illustrated history of inventions, from the wheel to the computer. (New York, Holt, Rinehart & Winston [1974])

Benjamin Butterworth (ed.), The growth of industrial art (Washington, Govt. print. off., 1888) [Reprinted in 1892 and 1972]

Making of America, a searchable digital library of 19th century books and journals.

Valérie-Anne Giscard d'Estaing, The World Almanac book of inventions (New York, N.Y.: World Almanac Publications, Ballantine Books, 1985)

Charles Panati, Extraordinary origins of everyday things (New York : Perennial Library, c1987, 1st ed.)