About: http://webisa.webdatacommons.org/98998601

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	The present invention is an improved method for releasing a stuck drill string in the borehole of an underground formation.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com