PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The present invention, therefore, provides in certain, but not necessarily all embodiments, a method for disconnecting a first tubular member from a second tubular member, the method including engaging a top end of the first tubular member with a torque head of a top drive system, the top drive system comprising a top drive, bails connected to and extending beneath the top drive, elevator apparatu
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.fr