Patent model, Field dynamo circuit, US Patent #236,569
name: label: maker
content: Field, Stephen D.
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.308590
label: catalog number
content: 308590
label: accession number
content: 89797
objectType: label: Object Name
content: Dynamo Current Equalizer
label: Object Name
content: current equalizer
label: Other Terms
content: Dynamo Current Equalizer; Magnetic Devices; Electromagnetic Devices; Electromagnetic Devices
physicalDescription: label: Measurements
content: overall: 9 in x 12 in; x 22.86 cm x 30.48 cm