About: http://webisa.webdatacommons.org/58539667

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	Such a size reduction machine is disclosed, for example, in U.S. Pat. No. 4,759,507, which describes using various screen openings of varying size and shape and using various impeller types to control particle size.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com