Steinmetz, Dr. Charles Proteus, Inventor, E.E., 42,732 D
setName: label: See more items in
content: Scientists and Inventors Portrait File: photoprints
label: See more items in
content: Scientists and Inventors Portrait File: photoprints / Series 1: Photoprints
container: label: Container
content: Box 4
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
label: Type
content: Photographs