Patent file history
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 2 : Patent Records for Basketball Rim / 2.2: Research/File History
unitdate: label: Date
content: 1976-1982 (partial)
container: label: Container
content: Box 2, Folder 5
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials