Authors: United States.
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- United States. Public Health Service - 1341 downloads
- Geological Survey (U.S.) - 1265 downloads
- Taft, William H. (William Howard) 1857-1930 1219 downloads
- United States. Navy Department. Bureau of Ordnance - 1130 downloads
- Army War College (U.S.) - 1095 downloads
- United States Tariff Commission - 1089 downloads
- United States. Office of Civil Defense - 1048 downloads
- Eisenhower, Dwight D. (Dwight David) 1890-1969 1031 downloads
- Van Buren, Martin 1782-1862 1010 downloads
- United States. Congress. House. Committee on Patents - 988 downloads
- United States. Department of the Army - 956 downloads
- United States Food Administration - 955 downloads
- United States. Coast Guard - 886 downloads
- United States. Department of Agriculture - 871 downloads
- Harding, Warren G. (Warren Gamaliel) 1865-1923 805 downloads
- United States. Department of Commerce - 800 downloads
- United States. Foreign Operations Administration - 731 downloads
- Federal Writers' Project - 718 downloads
- Northwest Territory Celebration Commission (U.S.) - 718 downloads
- United States. Congress. Senate. Committee on Patents - 712 downloads
- Bush, George 1924-2018 701 downloads
- United States. Forest Service - 701 downloads
- United States. Bureau of Naval Personnel - 686 downloads
- Jet Propulsion Laboratory (U.S.) - 651 downloads
- United States Rubber Company - 649 downloads