3M Record of Invention
name: label: Collection Creator
content: Leonard, Ronald J.
setName: label: See more items in
content: Ronald J. Leonard Papers
label: See more items in
content: Ronald J. Leonard Papers / Series 2: Patent Materials
unitdate: label: Date
content: 1999
container: label: Container
content: Box 2, Folder 3
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials