Ehrat and Dittrich Patents
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 / 2.1 : Ehrat and Dittrich Patents
unitdate: label: Date
content: 1979-1984
container: label: Container
content: Box 2, Folder 1
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
scopecontent: label: Scope and Contents
content: Copies of United States Patent No. 4,365,802 (Ehrat), United States Patent No. 4,151,989 and United States Patent No. 4,465,277 (Dittrich)