PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • BACKGROUND OF THE INVENTION (1) Field of the invention The present invention relates to a tool that is commonly referred to as a milling tool that is adapted to be secured in a string of pipe and lowered into a well bore and for cutting objects in the well bore such as packers, metallic objects, or other objects in the well bore.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.co.uk