Patents
name: label: Collection Creator
content: Bay State Gas Company.
setName: label: See more items in
content: Coal and Gas Trust Investigation Collection
unitdate: label: Date
content: 1870-1897
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
identifier: label: Identifier
content: NMAH.AC.1049, Series 3
objectType: label: Type
content: Archival materials