Keim’s illustrated guide to the museum of models, Patent office;
- publisher: Washington, D.C., Be B. R. Keim
- creator: Keim, De B. Randolph (De Benneville Randolph), 1841-1914, pub
- contributor: Keim, De B. Randolph (De Benneville Randolph), 1841-1914, pub.
- Keyword: United States. Patent Office.
- years: 1874.
- pages: 48 p.
- class: T223.R2
- download: pdf file
