Authors: United States.
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- United States. Congress. House. Committee on Un-American Activities - 1312 downloads
- Geological Survey (U.S.) - 1285 downloads
- Taft, William H. (William Howard) 1857-1930 1272 downloads
- United States Tariff Commission - 1139 downloads
- Army War College (U.S.) - 1126 downloads
- United States. Office of Civil Defense - 1118 downloads
- United States. Navy Department. Bureau of Ordnance - 1089 downloads
- Eisenhower, Dwight D. (Dwight David) 1890-1969 1084 downloads
- Van Buren, Martin 1782-1862 1040 downloads
- United States. Congress. House. Committee on Patents - 1025 downloads
- United States Food Administration - 1003 downloads
- United States. Department of the Army - 953 downloads
- United States. Department of Agriculture - 950 downloads
- United States. Department of Commerce - 894 downloads
- United States. Coast Guard - 873 downloads
- Harding, Warren G. (Warren Gamaliel) 1865-1923 763 downloads
- United States. Forest Service - 753 downloads
- United States. Foreign Operations Administration - 746 downloads
- United States. Congress. Senate. Committee on Patents - 734 downloads
- Bush, George 1924-2018 725 downloads
- Federal Writers' Project - 711 downloads
- Northwest Territory Celebration Commission (U.S.) - 711 downloads
- United States Rubber Company - 677 downloads
- Jet Propulsion Laboratory (U.S.) - 667 downloads
- United States. Federal Interdepartmental Task Force on the Potomac - 648 downloads