Hugo Lentz and Wilhelm Voit
name: label: Collection Manufacturer
content: Kingsford Foundry and Machine Company
setName: label: See more items in
content: Kingsford Foundry & Machine Works Records
label: See more items in
content: Kingsford Foundry & Machine Works Records / Series 3: Patents
unitdate: label: Date
content: 1900-1907
container: label: Container
content: Box 1, Folder 12
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
scopecontent: label: Scope and Contents
content: Patents document valve gears.