William 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 4 : Licensing Agreements
unitdate: label: Date
content: 1985-1994
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
identifier: label: Identifier
content: NMAH.AC.0907, Subseries 4.6
objectType: label: Type
content: Archival materials