rack with support equipment for Bell Labs sound spectrograph
date: label: date made
content: ca 1940
name: label: maker
content: Bell Telephone Company
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Speech Communications Research Laboratory, Inc., thru David J. Broad
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.336486.02
label: catalog number
content: 336486.02
label: accession number
content: 1978.0185
objectType: label: Object Name
content: sound spectrograph