Patent Materials
name: label: Collection Creator
content: James Leffel and Company
setName: label: See more items in
content: James Leffel and Company Records
unitdate: label: Date
content: 1848-1931
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
identifier: label: Identifier
content: NMAH.AC.0960, Series 2
objectType: label: Type
content: Archival materials
scopecontent: label: Scope and Contents
content: This series consists of patents, both United States and other countries, and correspondence about patent infringement and patent applications. James Leffel and Company was represented by patent and corporate law firm of Toulmin and Toulmin in Dayton, Ohio.