Church, D. H., inventor, mechanical engineer (power), 17,969 A
setName: label: See more items in
content: Scientists and Inventors Portrait File: photoprints
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content: Scientists and Inventors Portrait File: photoprints / Series 1: Photoprints
container: label: Container
content: Box 1
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
label: Type
content: Photographs