Patents
name: label: Collection Creator
content: Espenschied, Lloyd, 1889-? (electrical engineer)
setName: label: See more items in
content: Lloyd Espenschied Papers
unitdate: label: Date
content: 1928-1953
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
identifier: label: Identifier
content: NMAH.AC.0013, Series 3
objectType: label: Type
content: Archival materials