D3 Original Patent Application
name: label: Collection Creator
content: Ehrat, Arthur
label: Collection Creator
content: Fleckner, John A., 1941-
setName: label: See more items in
content: Arthur Ehrat Papers
label: See more items in
content: Arthur Ehrat Papers / Series 6: Toby Dittrich Files / 6.2: Patent Information
unitdate: label: Date
content: 1976 - 1979
container: label: Container
content: Box 21, Folder 8
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials