About: http://webisa.webdatacommons.org/49118088

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	As far as I am aware, in the late 18th century when the Constitution was written, the ???useful arts??? did not include such activities as trading, book-keeping or book-making (commercial risk management).
http://www.w3.org/ns/prov#wasQuotedFrom	patentlyo.com