About: http://webisa.webdatacommons.org/433692442

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	FIG. 4 is a fragmentary vertical cross sectional view of one of the uppermost threaded pins in engagement with a recess in the packer engaging ring that forms a part of the plug assembly and taken on the line 4--4 of FIG. 2;
http://www.w3.org/ns/prov#wasQuotedFrom	google.com