About: http://webisa.webdatacommons.org/153298032

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	Grain and fertilizer collector machines have been commercialized for many years, and represent the underlying technology over which the present invention is a significant improvement.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com