A digest of patents

Chicago citation style
United States. Patent Office. A digest of patents. 1840. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/002009332. (Accessed May 31, 2023.)
APA citation style
United States. Patent Office, (1840) A digest of patents. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/002009332
MLA citation style
United States. Patent Office. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/002009332>.
Note: These citations are programmatically generated and may be incomplete.