PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This invention is a perforating assembly with an outside diameter which permits it to be manually dropped into a tubing string allowing it to reach the appropriate point, typically a pump or an obstruction, in a well in a matter of minutes rather than hours required when a perforator is lowered via a wireline operation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.fr