U.S. Patent 662,412
odd: label: General
content: Gates, Elmer. 1900. Magnetic separator. U.S. Patent 662,412, filed April 14, 1900, issued November 27, 1900.
name: label: Collection Creator
content: Gates, Elmer, 1859-1923
setName: label: See more items in
content: Elmer Gates Papers
label: See more items in
content: Elmer Gates Papers / Series 4: Patents / 4.1: United States Patents (issued)
unitdate: label: Date
content: November 27, 1900
container: label: Container
content: Box 2, Folder 3
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials