U.S. Patent Office correspondence
name: label: Collection Author
content: Trigg, Charles W., 1898-1989 (chemist)
setName: label: See more items in
content: Charles W. Trigg Papers
label: See more items in
content: Charles W. Trigg Papers / Series 2: Personal Data and patents of C.W. Trigg
unitdate: label: Date
content: 1918 - 1920
container: label: Container
content: Box 3, Folder 5
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials