W.P. Skiffington, patents
setName: label: See more items in
content: Paul Steam-Heating System Company Records
label: See more items in
content: Paul Steam-Heating System Company Records / Series 1: Business Materials
unitdate: label: Date
content: 1891, 1894
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