# 854, 813 to 1,211,754, 1907-1919 (Detectors and rectifiers).
name: label: Collection Creator
content: United Telegraph Workers.
label: Collection Creator
content: Western Union Telegraph Company
setName: label: See more items in
content: Western Union Telegraph Company Records
label: See more items in
content: Western Union Telegraph Company Records / Series 12: Patent Materials / 12.2: By Patent Number
container: label: Container
content: Box 459, Folder 2
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials