About: http://webisa.webdatacommons.org/188731467

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	No. 463,781 filed Jun. 14, 1965, entitled ABRASIVE FLOW SYSTEM AND METHODS, now abandoned, apparatus and methods were disclosed for cleaning storage tanks and other structures.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es