Digest of agricultural implements, patented in the United States from A.D. 1789 to July 1881 ..
- publisher: [New York, Printed by J.C. Von Arx
- creator: Allen, James T. (James Titus) United States. Patent Office
- contributor: United States. Patent Office.
- Keyword: Agricultural machinery. Patents United States.
- years: 1886]
- pages: 2 v.
- notes: "Limited to 100 copies."
- download: pdf file